... Descriptors : , (*ELECTRODES, MASKING), (*SOLDERING ALLOYS, ELECTRODES), POLAND, MERCURY ALLOYS, TELLURIUM ALLOYS ...
DTIC Science & Technology
... CELLS, ELECTRODES), (*ELECTRODES, FUEL CELLS), (*THALLIUM ALLOYS, ELECTRODES), MERCURY ALLOYS, CAPACITANCE, VOLTAGE ...
... FUEL CELLS, ELECTRODES), (*ELECTRODES, FUEL CELLS), (*THALLIUM ALLOYS, MERCURY ALLOYS), ELECTROCHEMISTRY, VOLTAGE ...
... CELLS, ELECTRODES), (*ELECTROCHEMISTRY, FUEL CELLS), (*ELECTRODES, FUEL CELLS), MERCURY ALLOYS, PALLADIUM ALLOYS ...
... ELECTRIC DOUBLE LAYER, *ELECTROCHEMISTRY, *ELECTRODES, *ELECTROLYTES, *THALLIUM ALLOYS, MERCURY ALLOYS, THEORY. ...
... (Author). Descriptors : *ELECTROCHEMISTRY, FUEL CELLS, ELECTRODES, HYDROGEN, VOLTAGE, MERCURY ALLOYS, THALLIUM ALLOYS ...
... Descriptors : *FUEL CELLS, ELECTROCHEMISTRY, ELECTRODES, INDIUM ALLOYS, MERCURY ALLOYS, BIBLIOGRAPHIES, PERCHLORIC ...
... Descriptors : *FUEL CELLS, *LIQUID METALS, ELECTRODES, HYDROGEN, ALLOYS, MERCURY ALLOYS, PALLADIUM ALLOYS, PLATINUM ...
A method of making a negative electrode, the electrode made thereby and a secondary electrochemical cell using the electrode. Lithium, silicon and nickel is alloyed in a prescribed proportion forming an electroactive material, to provide an improved electrode and cell.
Energy Citations Database
A method of making a negative electrode is described, the electrode made thereby and a secondary electrochemical cell using the electrode. Lithium, silicon and nickel is alloyed in a prescribed proportion forming an electroactive material, to provide an improved electrode and cell. 7 figs.
... Descriptors : , ELECTRODES, FUEL CELLS, OXYGEN, HYDROGEN, OXIDATION, MERCURY ALLOYS, OXIDES, PLATINUM, THALLIUM ALLOYS ...
... FUEL CELLS, ELECTRODES), (*ELECTRIC DOUBLE LAYER, INDIUM ALLOYS), MERCURY ALLOYS, ELECTROLYTES, PERCHLORIC ACID ...
... Title : STRAINED ELECTRODE REACTIONS AND STRESS CORROSION CRACKING OF 5083 ALLOY,. Corporate Author : ...
... BATTERIES, ELECTROCHEMISTRY, ELECTRODES, ZINC, NICKEL, ELECTROLYTES, CARBONATES, MERCURY ALLOYS, BATTERY ...
... Descriptors : *FUEL CELLS, ELECTROCHEMISTRY, MERCURY ALLOYS, PERCHLORIC ACID, VOLTAGE, ELECTRODES. ...
... ELECTRODES, ELECTROCHEMISTRY, HYDROGEN, OXYGEN, OXIDATION, REDUCTION(CHEMISTRY), FORMATES, MERCURY ALLOYS ...
... CELL), HYDROGEN, CHLORINE, NICKEL, ELECTRODEPOSITION, ALKALI METAL ALLOYS, MERCURY ALLOYS, CATALYSIS, OXIDATION ...
... SPECTRA, SPECTROSCOPY, METAL COATINGS, ELECTROPLATING, PLATINUM ALLOYS, MERCURY ALLOYS, ADSORPTION, SURFACES ...
... FUEL CELLS, INDIUM ALLOYS, VOLTAGE, MEASUREMENT, TEMPERATURE, ERRORS, HYDROGEN, MERCURY ALLOYS, ENTHALPY. ...
... POLARIZATION, CORROSION, ELECTROCHEMISTRY, NICKEL, PALLADIUM, SILICON ALLOYS, NICKEL COMPOUNDS, ARSENIC ALLOYS ...
The purpose of this project is to prepare lithium alloys and to characterize their electrochemical properties to evaluate their application in solid state batteries as negative electrodes. The alloys were prepared in a DTA equipment in closed stainless st...
National Technical Information Service (NTIS)
... composition of weld metal on weld crack by using high alloy aluminum electrode wires. Base metals of 5052, 5053 and 6061 alloys, and electrode ...
... ELECTRODES, *STORAGE BATTERIES, MICROSTRUCTURE, CASTINGS, LEAD ALLOYS, ANTIMONY ALLOYS, CORROSION, POROSITY. ...
... ELECTRODES, TELLURIDES, TIN, ELECTRICAL ... BISMUTH, ELECTROPLATING, ANTIMONY ALLOYS ... BISMUTH ALLOYS, LEAD ALLOYS, ...
We consider the order-disorder phase transition in thin films of the binary, AB3 type, alloys. The theory is based on the model consisting of pairwise interactions between nearest neighbour atoms belonging to the sublattices in the form of the monoatomic layers parallel to the surface. This model, the so-called ...
NASA Astrophysics Data System (ADS)
An improved lithium electrode structure comprises an alloy of lithium, silicon, and iron in specified proportions and a supporting current-collecting matrix in intimate contact with the alloy. The lithium electrode of the present invention is utilized as the negative electrode in a rechargeable ...
An improved lithium electrode structure comprises an alloy of lithium and silicon in specified proportions and a supporting current-collecting matrix in intimate contact with said alloy. The lithium electrode of the present invention is utilized as the negative electrode in a rechargeable ...
... Title : Relationship between Straining Electrode Behavior and Corrosion Film of Nickel Base Alloys in a High Temperature Caustic Solution. ...
... Electrode sticking to resistance spot welded refractory metal alloys ... to be directly related to welding current, electrode force and weld time. ...
... WITH A GEL ELECTRODE CONTAINING 0.06 M POTASSIUM IODIDE (KI ... REPEATABLE IMAGES OF CRACKS IN ALUMINUM ALLOYS, WITH A ...
... by nonconsumbable electrode arc melting ... MELTING, BORON, CARBON, COMPOSITE MATERIALS, DEFORMATION, ELECTRODES, ELECTRON ...
... Accession Number : ADA105902. Title : Lithium-Aluminum Alloy Electrodes in Lithium Chlorate. Descriptive Note : Technical rept.,. ...
... Accession Number : ADD143607. Title : Effects of Cr on Electrode Strain Behavior for High-Ni Alloys in Hot Caustic Solutions,. ...
The present invention relates to electrodes for use in secondary electrochemical cells. More particularly, it concerns a method of making a negative electrode composition, the electrode composition made thereby and the secondary electrochemical cell containing the electrode, wherein the negative ...
DOE Information Bridge
In a silver-zinc alkaline type secondary battery, a positive electrode consists essentially of silver alloyed with about 1.5% palladium by weight of the electrode.
A secondary electrochemical cell is described with the positive and negative electrodes separated by a molten salt electrolyte with the negative electrode comprising a particulate mixture of lithium-aluminum alloy and electrolyte and an additive selected ...
Performance Modeling of the Metal Hydride Electrode Performance Modeling of the Metal Hydride for the electrochemical characterization of MH electrodes to understand and predict the performance of metal hydride (MH electrodes to understand and predict the performance of metal hydride (MH) alloys as ...
E-print Network
... Descriptors : (*ARC WELDING, *ALUMINUM ALLOYS), INERT GAS WELDING, CONSUMABLE ELECTRODE PROCESS, PULSES, MACHINES ...
... (Author). Descriptors : , MERCURY, PALLADIUM ALLOYS, MERCURY ALLOYS, ELECTRODES, X RAY DIFFRACTION, PARTICLE SIZE ...
... PLATINUM, NICKEL ALLOYS, CARBON MONOXIDE, GOLD, FUEL CELLS, SILVER, THALLIUM, ELECTRIC BATTERIES, MERCURY ALLOYS. ...
... ACIDS, NICKEL, PLATINUM, NICKEL ALLOYS, COPPER ALLOYS, ELECTRODES, MERCURY, MERCURY COMPOUNDS, REACTION KINETICS ...
The report discusses the development of copper alloys with the necessary heat resistance and electrical conductance for use as welding electrodes.
A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transition metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy ...
A secondary electrochemical cell and a negative electrode composition for use therewith is disclosed that is of a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary ...
A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy ...
DOEpatents
... matrix in the eutectic alloy, Al-Al3Ni. ... studies with aluminum-nickel alloys illustrated that ... with a special fabricated platinum electrode demonstrated ...
... WITH A CONSUMABLE AND NON-CONSUMABLE ELECTRODE, AND ALSO IN THE ELECTROSLAG WELDING OF ALLOYS VT14 AND VT22 ...
... Title : TECHNOLOGY OF PRODUCTION AND MELTING OF EXTRUDED AND BRIQUETTED ELECTRODES FOR MELTING TITANIUM ALLOYS. ...
... SEMICONDUCTOR), HYDRAZINES, MOLYBDENUM, ALLOYS ... STATE PHYSICS, OXIDES, ELECTRODES, PLATINUM, ANTIMONY. ...
... CORROSIVE LIQUIDS, GOLD ALLOYS, CORROSION, ELECTRODES, EUTECTICS, SODIUM COMPOUNDS, LITHIUM COMPOUNDS, HIGH ...
... Title : OPTIMISING THE CONDITIONS FOR THE CHEMICAL POLISHING OF ALUMINIUM AND ALUMINIUM ALLOY ELECTRODE WIRES,. ...
... Title : Method and Equipment for Electrochemically Removing Contamination from the surface of Aluminium Alloy Electrode Wire,. ...
... (Author). Descriptors : *FUEL CELLS, *CATALYSTS, OXIDATION, ELECTRODES ... CARBIDES, GRAPHITE, SURFACES ... GOLD, PLATINUM ALLOYS ...
... THERMODYNAMICS, ALCOHOLS, PERCHLORATES, BARIUM COMPOUNDS, VOLTAGE, MERCURY ALLOYS, ELECTROCHEMISTRY. ...
... ELECTRODES, HYDROCARBONS, RESEARCH MANAGEMENT, PROPANE, ACIDS, SULFONIC ACIDS, ACETIC ACID, PLATINUM ALLOYS ...
... REDUCTION REACTIONS), (*ELECTRIC DOUBLE LAYER, ELECTRICAL IMPEDANCE), MERCURY ALLOYS, EQUATIONS, ELECTRICAL ...
High uranium alloys of titanium and iron were prepared using consumable-electrode vacuum-arc melting. Electrode and ingot production are described. (M.C.G.)
This standard covers bare (solid) low-alloy steel electrodes and fluxes for submerged arc welding in nuclear and associated applications. Composite electrodes are not covered by this standard.
The cycling efficiency of lithium-aluminum electrode has been studied in a variety of aprotic systems and compared with that of pure lithium. It is shown that the efficiency of the alloy electrode is virtually independent of the nature of the electrolyte solution but that it depends somewhat on the amount of alloy ...
A negative electrode that includes a lithium alloy as active material is prepared by briefly submerging a porous, electrically conductive substrate within a melt of the alloy. Prior to solidification, excess melt can be removed by vibrating or otherwise m...
Particulate electrode reactants, for instance transition metal sulfides for the positive electrodes and lithium alloys for the negative electrodes, are vibratorily compacted into porous, electrically conductive structures. Structures of high porosity supp...
Molybdenum-copper and tungsten-copper alloys are prepared by a consumable electrode method in which the electrode consists of a copper matrix with embedded strips of refractory molybdenum or tungsten. The electrode is progressively melted at its lower end with a superatmospheric inert gas pressure maintained around ...
Low antimony alloys of lead are used for casting electrode supports in lead accumulators. They include less than 4% antimony by weight to avoid various poisoning effects of antimony on the electrochemical processes involved. Such alloys tend to have grains of excessive size which can lead to brittle castings. To reduce the grain size ...
This standard covers nickel and nickel-alloy bare and covered welding rods and electrodes for hard surfacing in nuclear and associated applications.
... Pagination or Media Count : 39. ... process, Stability, Electrodes, Titanium, Titanium alloys, Cathodes, Refractory coatings, Argon, Helium, Stabilization ...
... Corrosion behavior of two candidate IM electrode materials, 316LVM and MP35N, was studied in a saline solution using fast sweep cyclic ...
Tungsten, molybdenum, and alloys thereof are useful as electrode members for thermoelectric legs made from chalcogenides of copper and/or silver.
... perpendicular to the stress axis, while in the case of deformed 7029 aluminum, the gel electrode image revealed the rupture of a 28 nm oxide along ...
... Title : Erosion Rate, Surface Finish and Electrode Wear in Electric Discharge Machining (EDM) of Dental Alloys. Descriptive Note : Master's thesis,. ...
... composition and structure of Sony Corporation's new 14430 lithium-ion battery electrodes ... The alloy phase consists mainly of tin and cobalt, with a ...
This invention relates to lithium-germanium containing electrodes for electrical energy storage batteries, batteries containing such electrodes and a process for fabrication of such electrodes from materials in the charged and uncharged state. The electro-chemically active material may be a binary alloy of ...
We report Pt-based alloys with early transition metals. Significant electrocatalysis occurs during oxygen reduction reaction (ORR) at the Pt-Y alloy electrodes, and the extent depends on the alloy composition. The Pt-Y alloy electrode activity is related to the d-band ...
PubMed
alloying with high valency metals (Ir, Rh, Ru, Pt, Ti, and Rh),. (3) Alloying of exothermic hydrogen occluders improved the electrode performance, ...
NASA Website
... The same may be true of nickel-base alloys and other alloy systems. 2. Electrocapillary Effects in the Cleavage Fracture of Zinc Electrodes ...
... first electrode was melted at the standard power input used for titanium alloys. ... Hardness was uniform at Rc 48 - 49 from surface to center and top to ...
... 6. Corrosion of Zinc-Copper Alloys ... IWright-Patterson Air Fc Base, Qhio [IS, ABSTRACT Studies of the passivation of Zn and Zn-alloys in KOH at ...
Apr 26, 1996 ... Creep rate is one of the alloy properties that determines the degree to which a welding electrode will mushroom or expand at the tip. ...
... STUDIES AT 288 C(550 F) USING THE STRAINING ELECTRODE TECHNIQUE--COMPARISON OF ALLOY 600, ALLOY 800, AND TYPE 304 ...
... SEVEN COMMERCIAL ALLOYS (1080, 1070, 1050, 5052, 5082, ZK41 ... LATTER PREPARED FROM 99.5% AND 99.99% ALUMINUM,) AND AL ...
Electrode pitting was investigated in resistance spot welding of 1.5-mm-thick sheet aluminum alloy 5182 using a medium-frequency direct-current welder and electrodes with a tip face curvature radius of 50 mm and tip face diameter of 10 mm. Detailed investigation of the metallurgical interactions between the copper ...
It has been discovered that some fusible alloys composed of Bi, Pb, Sn and Cd exhibit good characteristics as the material of the negative electrode of secondary lithium batteries. The alloy electrode allows charging and discharging by such reaction to ab...
Jan 22, 2011 ... Title: Rhodium-Tungsten Alloys for High Temperature Electrodes Deposited by Photolytic Chemical Vapor Deposition. Authors: O'Connor, M.A. ...
We developed the novel pressure-annealing method for fabricating printed low-work function metal patterns and printed metal alloy patterns. The printed diode having various rectification properties was successfully produced by using the printed metal alloy electrode pressure-annealed.
A solid compact having a uniform alloy composition of lithium and aluminum is prepared as a negative electrode for an electrochemical cell. Lithium losses during preparation are minimized by dissolving aluminum within a lithium-rich melt at temperatures n...
The melting characteristics and the Mn distribution at the electrode tip during the vacuum arc remelting of a 410 mm diameter consumable alloy A-286 electrode are investigated. It was discovered that Mn evaporation occurred primarily during the droplet fo...
A sintered porous electrode useful for a molten carbonate fuel cell is produced which is composed of a plurality of 5 wt. % to 95 wt. % nickel balance copper alloy encapsulated ceramic particles sintered together by the alloy.
This standard covers 2-1/4%-chromium, 1%-molybdenum alloy bare welding rods and electrodes for nuclear and associated applications.
A self-positioned thin (SPOT) Pb-alloy base electrode Josephson junction is developed. In this junction, a 50-nm thick Pb-alloy base electrode is restricted within the junction region on an Nb underlayer using a self-alignment technique. The grain size reduction and the base electrode area ...
The major objectives of the present study are: (1) to obtain electrode kinetic parameters for hydrogen and oxygen evolution reactions as a function of temperature and to ascertain the efficiency gain at higher operating temperature for water electrolysis; (2) to investigate the kinetics of the OER on Ni-based alloys or intermetallic compounds and to ...
The test system consisted of (1) two electrodes, platinum and a ... surfaces with the geometry of secondary cleavage crack intersections on the test alloys. ...
... ARMY EQUIPMENT, ELECTRODES, HEATING, GAS DISCHARGES, RATIONS, EXPLOSION GASES, MAGNESIUM OXIDES, SALT WATER. ...
... ELECTRODES, *SURFACE CHEMISTRY, *ZINC ALLOYS, IONS, REPRINTS, MEASUREMENT, COATINGS, ADDITIVES, SULFATES, AUSTRALIA. ...
... CELL), CATHODES(ELECTROLYTIC CELL), ELECTRODES, ELECTROLYTES, HYDROXIDES, MERCURY ALLOYS, OXYGEN, POLARIZATION ...
A solid compact having a uniform alloy composition of lithium and aluminum is prepared as a negative electrode for an electrochemical cell. Lithium losses during preparation are minimized by dissolving aluminum within a lithium-rich melt at temperatures near the liquidus temperatures. The desired alloy composition is then solidified ...
... Title : Evaporation Behaviour of Elements during the Large Section Consumable Electrode VAR Process of Alloy A-286,. ...
Nanocrystalline LaNi{sub 5} and LaNi{sub 4.5}Si{sub 0.5} synthesized by mechanical alloying were used as negative materials for Ni-MH batteries. It was found that the electrodes prepared with the nanocrystalline powders had similar discharge capacities, better activation behaviors, and longer cycle lifetimes, compared with the negative ...
... Descriptors : *ELECTROEROSIVE MACHINING), (*GUN BARRELS, RIFLING, BORES ... METAL ALLOYS, ELECTRIC DISCHARGES, ELECTRODES ...
... 8 magnesium alloy. The specimens were rubbed with emery cloth and degreased with ethyl alcohol. A working surface ...
... THE HERMETICITY OF WELDED JOINTS IN ... ELECTRODE ARGON-ARC WELDING OF COMPONENTS ... ALLOY AMG6, THE WELD METAL OFTEN ...
A program for the development of improved catalyst and Teflon-bonded electrode structures using this
NASA Technical Reports Server (NTRS)
... FIBERS, POLARIZATION, CORROSION, ALUMINUM ALLOYS ... PREDICTIONS, ELECTRODES, ALUMINUM, SCALE ... CHLORIDE, ZINC, MODELS ...
... Current Decay and Straining Electrode Experiments in Assessing the Stress Corrosion Cracking Susceptibilities of Low Alloy Ferritic Steels,. ...
Disclosed is a negative electrode-limited secondary electrochemical cell having dense FeS sub 2 positive electrode operating exclusively on the upper plateau, a Li alloy negative electrode and a suitable lithium-containing electrolyte. The electrolyte pre...
The results of an in situ investigation of the structural changes that occur during the operation of working battery electrodes using synchrotron radiation are presented. Two types of electrodes were investigated: an AB(sub 2)-type Laves phase alloy anode...
A secondary, high temperature electrochemical cell especially adapted for lithium alloy negative electrodes, transition metal chalcogenide positive electrodes and alkali metal halide or alkaline earth metal halide electrolyte is disclosed. The cell is hel...
A negative electrode that includes a lithium alloy as active material is prepared by briefly submerging a porous, electrically conductive substrate within a melt of the alloy. Prior to solidification, excess melt can be removed by vibrating or otherwise manipulating the filled substrate to expose interstitial surfaces. ...
and the formation of Cu-Zn alloy layers on the electrode faces. The , , and brass phases may all be observed in electrode face diameter leads to a reduction in current density. Eventually the current density is reduced diameter as a function of current density during AWS D8.9 test of a class 2 electrode ...
An improved lithium electrode structure comprises an alloy of lithium and silicon in specified proportions and a supporting current-collecting matrix in intimate contact with the alloy. The lithium electrode of the present invention is utilized as the negative electrode in a rechargeable ...
A method is described for making an electrode for an electrochemical cell in which particulate electrode-active material is mixed with a liquid organic carrier chemically inert with respect to the electrode-active material, mixing the liquid carrier to form an extrudable slurry. The liquid carrier is present in an amount of from about ...
Localized corrosion in welded samples of 2219-T87 Al alloy (2319 filler), 2090 Al-Li alloy (4043 and 2319 fillers), and 2195 Al-Li alloy (4043 and 2319 fillers) has been investigated using the relatively new scanning reference electrode technique. The wel...
compositional homogeneity. Working electrodes were prepared by cold pressing the mixtures of the alloy and Cu alloy X.Y. Songa, b, *, Y. Chena , Z. Zhangb , Y.Q. Leib , X.B. Zhangb , Q.D. Wangb a Department and electrochemical properties variation of alloy Zr(MnVNi)2 after Ti substitution for Zr was investigated
crucible under argon atmosphere. Alloys were remelted four times to ensure the compositional homogeneity electrode alloys Xueyan Song Department of Materials Science and Engineering, Zhejiang University, 310027) The electrochemical capacity, hydrogen absorbed/desorbed activation properties of alloy ...
Calcium alloys such as calcium-aluminum and calcium-silicon, are employed as active material within a rechargeable negative electrode of an electrochemical cell. Such cells can use a molten salt electrolyte including calcium ions and a positive electrode having sulfur, sulfides, or oxides as active material. The calcium ...
Electrochemical phase extraction methods were developed empirically for the selective separation of the precipitates in metallic materials, particularly nickel-base alloys. Sixteen model alloys were prepared as test electrodes and the electrolyte composit...
Copper-based alloys have been widely used for electric contacts, electrodes, wires and circuits. But more efficient integrated circuit demands copper alloys improved in electrical conductivity and mechanical properties such as strength, softening resistan...
An improved inert electrode composition is suitable for use as an inert electrode in the production of metals such as aluminum by the electrolytic reduction of metal oxide or metal salt dissolved in a molten salt bath. The composition comprises one or more metal alloys and metal compounds which may include oxides of the metals ...
A method of manufacturing electrodes for lead storage batteries is described. Molten lead or lead alloy is deposited on a felt of glass fibers by spraying in a molten state to fill the space between the fibers of the felt to form an electrically conductive zone defining electrode contacts. A mass of powdered lead-based material is ...
An improved secondary electrochemical cell is disclosed having a negative electrode of lithium aluminum, a positive electrode of iron sulfide, a molten electrolyte of lithium chloride and potassium chloride, and the combination that the fully charged theoretical capacity of the negative electrode is in the range of 0.5-1.0 that of the ...
An improved inert electrode composition is suitable for use as an inert electrode in the production of metals such as aluminum by the electrolytic reduction of metal oxide or metal salt dissolved in a molten salt bath. The composition comprises one or more metals or metal alloys and metal compounds which may include oxides of the ...
The maximum dissolution current is used as a source of information in electrochemical phase analysis of alloys. Nonlinearity in the voltage sweep with a two-electrode cell may produce errors. The authors have used well-known cadmium-bismuth alloys and cadmium-tin ones in this paper to examine the effects of the geometrical parameters ...
Short-circuited electrodes of dental amalgams and a gold alloy were used in an attempt to study a possible relationship between the quantity of copper and tin ions released into an electrolyte and the charge transferred between the electrodes. It was found that under the experimental conditions used the quantity of tin ions released ...
The authors have used the rotating ring-disk electrode (RRDE) in combination with stripping voltammetry (SVA) at solid electrodes in order to determine partial dissolution rates of alloy components in the vicinity of the steady potential and also under cathodic and anodic polarization. The method of SVA is used in the analytical ...
This is an electrode for consumable arc melting of zirconium and titanium alloys containing a low melting point alloy constituent. The electrode uses a low resistance spar extending substantially the length of the electrode and being substantially free of any unalloyed low melting point ...
An investigation of the tissue reaction to five porous titanium alloy pacemaker electrode tips inserted in sheep hearts was made. Attachment of the electrode tips to the endocardial wall was facilitated by fibrous tissue ingrowth into the porous material. Vascularized fibrocollagenous tissue was found within the pores of the tips. One ...
A method for forming an improved lithium electrode structure which comprises an alloy of lithium, silicon, and boron in specified proportions and a supporting current-collecting matrix in intimate contact with the alloy is described. The lithium formed by the method of the present invention is utilized as the negative ...
This paper reports Spongy Raney nickel catalysts for use as hydrogen electrodes of fuel cells prepared by a new method. In this method molten aluminum was sprayed on both sides of a spongy plate of nickel as substrate with an acetylene-oxygen flame gun. Then, the spongy nickel electrodes were activated by alloying at a given ...
Spongy Raney nickel catalysts for use as hydrogen electrodes of fuel cells were prepared by a new method. In this method molten aluminum was sprayed on both sides of a spongy plate of nickel as substrate with an acetylene-oxygen flame gun. Then, the spongy nickel electrodes were activated by alloying at a given temperature of from 550 ...
A tantalum-copper alloy can be made by preparing a consumable electrode consisting of an elongated copper billet containing at least two spaced apart tantalum rods extending longitudinally the length of the billet. The electrode is placed in a dc arc furnace and melted under conditions which co-melt the copper and tantalum to form the ...
The effects of weld power, electrode force, electrode tip radius, and elapsed time between cleaning and welding on resistance spot welds in Ti-6Al-4V alloy were evaluated. The alloy is weldable by this technique, and a wide latitude can be taken in processing variables.
A nickel anode electrode fabricated by oxidizing a nickel alloying material to produce a material whose exterior contains nickel oxide and whose interior contains nickel metal throughout which is dispersed the oxide of the alloying material and by reducing and sintering the oxidized material to form a product having a nickel metal ...
A method is provided for producing ductile superalloys containing rare-earth metals, lanthanum, and yttrium by melting the desired alloy composition by conventional melt practices, adding the rare-earth metals, lanthanum or yttrium to the molten composition, forming the alloy composition into solid electrodes, remelting the solid ...
The Ti-Co-Mg powders were synthesized by mechanical alloying process. The crystalline structure, particle size, surface morphology and the electrochemical performance of the Ti-Co-Mg alloy electrodes have been characterized by X-ray diffractometer, field emission-scanning electron microscopy, and charge-discharge cycler. PMID:20358974
A direct methanol fuel cell (DMFC) having a methanol fuel supply, oxidant supply, and its membrane electrode assembly (MEA) formed of an anode electrode and a cathode electrode with a membrane therebetween, a methanol oxidation catalyst adjacent the anode electrode and the membrane, an oxidant reduction catalyst ...
A secondary, electrochemical cell is assembled in a completely discharged state within a sealed containment. As assembled, the cell includes a positive electrode separated from a negative electrode by a molten salt electrolyte. The positive electrode is contained within a porous structure, permitting passage of molten electrolyte, and ...
An uncharged positive-electrode composition contains particulate lithium sulfide, another alkali metal or alkaline earth metal compound other than sulfide, e.g., lithium carbide, and a transition metal powder. The composition along with a binder, such as electrolytic salt or a thermosetting resin is applied onto an electrically conductive substrate to form a plaque. The plaque ...
The objective of the work reported is to evaluate the electrochemical performance characteristics of lithium-silicon alloys as a negative electrode material for advanced molten salt battery cells. The experimental design used to carry out the work was a small one-dimensional electrode (ODE), operated in a cell. Reference ...
A secondary electrochemical cell with the positive and negative electrodes separated by a molten salt electrolyte with the negative electrode comprising a particulate mixture of lithium-aluminum alloy and electrolyte and an additive selected from graphitized carbon, Raney iron or mixtures thereof. The lithium-aluminum ...
Solid lithium--aluminum alloy electrodes have shown a great deal of promise for meeting the performance requirements of negative electrodes in lithium/metal sulfide batteries for stationary energy storage and for electric vehicle propulsion. In an effort to improve the performance of the lithium--aluminum alloy ...
Porous electrodes are used for many batteries because they permit the reactants to be close to the site of the electrochemical reaction. The basis for a nonuniform reaction distribution in such electrodes is reviewed, and some results are discussed for lithium alloy, iron sulfide cells. Discrepancies between model and experimental ...
Mouth-rinsing with oxydized water which contains electrolytically generated chlorine is known to hinder dental plaque formation and growth, but it also accelerates the deterioration of metallic restorations in the mouth. The present work consists of an in vitro study to elucidate the electrochemical reactions involved in the reduction of oxydized water on dental alloys through ...
A silver catalyst, used for activation of the water repellent electrodes of fuel cells, was prepared by etching an AG based binary alloy with alkalies. To increase the extended surface of the catalyst and to improve its electrochemical characteristics, an...
Selection of welding fluxes for steels used in nuclear steam generators and other structures is discussed. Information is included on welding machinery components, and on flux behavior, slag-metal interactions, fleet effects on electrodes, and electrode and flux selection. (JRD)
An improved electrode is disclosed for the anode in a sulfur cycle hydrogen generation process where sulfur dioxie is oxidized to form sulfuric acid at the anode. The active compound in the electrode is palladium, palladium oxide, an alloy of palladium, or a mixture thereof. The active compound may be deposited on a porous, stable, ...
... Title : New Al-7%Mg Welding Electrode for Crackless Welding of Al-Zn-Mg (7NO1) High Strength Aluminum Alloy (Report I)--Investigation on Weld ...
The results of measurements on small electrodes in the half-cell experiments and on large electrodes (50 to 160 cm exp 2 ) in compact cell studies (ANL results reported in 1979 to 1982) have been proven comparable in terms of area-specific resistances of ...
Some nickel and cobalt based super alloys have been preliminarily examined. ... radiation cooled molybdenum electrode. A large molybdenum guard ring is ..... The electrodes will probably be exposed to alkali metals, cesium on the convertes side, ... are now being promoted and entered into the strength and corrosion ...
Electro-spark deposition is a micro-welding technique of overlaying a metallic substrate with a conducting electrode. The revolving electrode is in direct surface contact and is rapidly scanned over the substrate to cover the entire surface area. Using th...
Thick oxide layers grown electrochemically on Rh, Ir, Ru and their alloys exhibit electrocatalytic properties associated with an internal redox process. For simple faradaic processes at the Rh/Rh oxide electrode it is shown that the rates of charge transf...
... of electrode potential on the intergranular stress corrosion cracking (IGSCC) of Alloy 600 in deaerated 0.01 M boric acid + 0.001 M LiOH solution at ...
This project concerns the development of a lithium-iron sulfide battery for electric utility energy storage that uses a molten KCl-LiCl electrolyte and is operated at about 400C. This report describes the work performed on iron sulfide positive electrodes and the status of associated elements of the project concerned with lithium negative electrodes, ...
The composition and structure of Sony Corporation's new 14430 lithium-ion battery electrodes was investigated. It was observed that the anode is a composite consisting of an equal amount on a weight basis of graphite and an amorphous alloy phase. The allo...
A composite electrode composed of a conductive polymer and an alkali-metal alloy has been investigated at the negative electrode for a nonaqueous rechargeable cell. A sodium-alloy based composite electrode compoosed of NA/sub 3.75/Pb,poly(p-phenylene), and binder achieved a capacity of 234 ...
A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy--transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending ...
A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy-transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending ...
The dependence of the rate of partial electrode reactions on the protengenic nature of medium on a titanium electrode can be evaluated by comparing parameters of the electrochemical processes on the electrode in a proton dimethyl formamide (DMFA) and protogenic aqueous medium. This problem can be solved most efficiently by the rotating ...
... of a series of nickel- and cobalt-base gas turbine alloys has been investigated in a (mole %) 53 sodium sulfate + 7 calcium sulfate + 40 magnesium ...
This article presents a study on the properties and performance of copper-based composite reinforced with recycled tungsten carbide powder as spot welding electrode. The copper-tungsten carbide composite electrode was prepared by mechanical alloying and powder forging before being machined into truncated cone-face geometry. The welding ...
... The effects of chromium contents in the range of 0-15 mass% on the repassivation rate is small at any potentials of -0.9 and 0 V. This suggests that ...
Provided is a composite electrochemical device fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. The inventi...
... deposited by arc welding using coated electrodes specified ... without galvanic protection with zinc anodes and ... with Ni-Cu 400 alloy overlay without ...
Research Interests Microstructural characterization of degradation mechanisms in PEM Fuel Cell Membrane Electrode Assemblies Water-vapor effects on (ceramics, alloys) oxidation...
Science.gov Websites
... Descriptors : *Weld metal, *Castings, *Electrodes, *Arc welding, Cracking( Fracturing), Casting alloys, Tensile strength, Stress relieving, Nickel steels ...
as high temperature fuel cells and direct conversion devices such as the alkali metal thermal-to-electric converter (AMT EC) must meet several criteria for ...
... of the Nexelion battery for the ... lithium anodes of rechargeable lithium batteries by carbonaceous ... negative electrodes in lithium-ion batteries has led ...
... Title : Microstructures and Mechanical Properties of Hot Isostatically Pressed Ti-6Al-6V-2Sn Alloy Powders Made by the Rotating Electrode Process ...
... Abstract : A simple electrochemical technique is described ... in aluminum alloys, without conventional metallographic surface preparation. ...
The invention provides both preferred material alloys and electrode lead wire configurations for electrically connecting the solid electrolyte cell in a gas sensing probe to a remote measuring circuit.
... Abstract : The electrochemical dissolution of magnesium (99.97% Mg and AZ-21 Magnesium alloy); her on magnesium; electrochemical reduction ...
... Pagination or Media Count : 34. Abstract : Work consists of polarization experiments on metals and alloys in sulfur-bearing molten salts under ...
The present work was conducted to compare the electrochemical behavior of Al and the alloy Al-Mg-Hg-Zn in aqueous and methanol solutions of LiCl from the standpoint of their possible use as chemical current sources. All the measurements were performed at 25/sup 0/C. The reference electrode was a saturated silver chloride electrode. The ...
... Title : Effect of Welding Conditions on Weld Formation when Welding VT20 Alloy with an Immersed Electrode,. Corporate Author : ...
... Title : Effect of Water Depth on the Underwater Wet Welding of Ferritic Steels Using Austenitic Ni-Based Alloy Electrodes. ...
... are for graphite. Second, no crystalline peaks could be observed for any tin-cobalt alloys or tin and cobalt. The lack of any ...
... passivation of the electrode occurs. Lactic acid inhibits dissolution, while hydrofluoric acid activates it. Its replacement by acid ...
... Abstract : It is observed that chromium addition simply increases the initial current density on bare surface of both the Fe-Cr and Ni-Cr alloys. ...
Laboratory tests have shown that a 25 weight percent alloy of lithium in aluminum should significantly outperform the calcium anode presently used in thermal batteries. The usable energy and power densities of this solid Li alloy are at least double those...
The state of the art in powder material and processes, for aircraft engine combustor, blade, and disk alloys, was reviewed. Processes developed in the 1970's include: gas atomization of superalloy powder for critical rotating parts; rotating electrode ato...
Microsegregation results in U-4 w t% Nb alloys casted in nonconsumable electrode arc furnace are presented. The microsegregation is studied qualitatively by optical microscopy and quantitatively by electron microprobe. The degreee of homogenetization has ...
The purpose of this research is to gather the fundamental data for manufacturing superior ingot from the VIM-treated Inconel 690 alloy electrode by ESR process. In the manufacturing of the superior ingot by ESR process, efforts are made to establish the r...
Attempts were made to develop a coating formulation for shielded metal arc (SMA) welding electrodes for iron aluminide alloys. Core wires of various compositions were produced by aspiration casting at ORNL and coating formulation development was conducted...
Hydrogen-absorbing alloys discovered about twenty years ago have been studied by many world engineers for their application to energy storage media as well as battery electrodes. And yet, improvement is required for long cycle-life of the alloy, and in th...
Corrosion studies were carried out for wrought and cast NASA-23 alloy using electrochemical methods. The scanning reference electrode technique (SRET), the polarization resistance technique (PR), and the electrochemical impedance spectroscopy (EIS) were e...
Methods of electrochemical thermodynamics (electrode potential-pH equilibrium diagrams) and electrochemical kinetics (polarization curves) may help to understand and predict the corrosion behaviour of metals and alloys in the presence of body fluids. A short review of the literature is given concerning some applications of such methods, both in vitro and ...
This article examines VP-6 electrodes based on the standard Sv-10NMA welding rod. The calcium fluoride (with increased CaF/sub 2/ content) coating of the electrodes also contains feldspar and rutile, which reduce the porosity of the weld metal, improve the technological welding properties of the electrodes, and ensure good weld ...
A negative electrode composition is presented for use in a secondary electrochemical cell. The cell also includes an elctrolyte with lithium ions, such as a molten salt of alkali metal halides or alkaline earth metal halides, that can be used in high-temperature cells. The positive electrode contains a chalcogen or a metal chalcogenide as the active ...
A negative electrode composition is presented for use in a secondary electrochemical cell. The cell also includes an electrolyte with lithium ions such as a molten salt of alkali metal halides or alkaline earth metal halides that can be used in high-temperature cells. The cell's positive electrode contains a a chalcogen or a metal chalcogenide as ...
To prevent lithium dendrite growth during cycling of Li electrodes in molten LiClO3 at 140 C, a Li-Al electrode in cells of the type Li/LiClO3/LiAl has been investigated. Two discharge plateaus, one about 0.42V and the other about 0.20V versus a lithium wire, were obtained. No lithium dendrites were observed. Continued cycling caused the lithium-aluminum ...
A negative electrode composition is presented for use in a secondary electrochemical cell. The cell aslo includes an electrolyte with lithium ions such as a molten salt of alkali metal halides or alkaline earth metal halides that can be used in high-temperature cells. The positive electrode contains a chalcogen or a metal chalcogenide as the active ...
