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7465424 |
Sputtering target material
Provided is a sputtering target material which has a high reflectance and which is excellent in a sulfurization resistance, comprising an Ag alloy prepared by alloying Ag with a specific small...
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7118707 |
Silver-platinum alloy and methods of manufacturing same
A silver-platinum alloy formulated to provide improved tarnish resistance and hardness as compared to sterling silver. The alloy can be incorporated in various jewelry, flatware, and like articles....
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6936117 |
Silver alloy with color fastness
A silver alloy with color fastness includes silver as major component; and a small quantity of copper, zinc and nickel so that it can be prevented to oxidize, and it can use metal with easy...
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6913657 |
Hard precious metal alloy member and method of manufacturing same
A hard precious metal alloy member is constituted of a gold alloy, which has a gold Au content of from 37.50 to 98.45 wt %, and contains a hardening additive in a range of not less than 50 ppm but...
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6860949 |
High strength, tarnish resistant composition of matter
A high strength, tarnish resistant composition of matter includes approximately 90 percent Ag, 3 to 5 percent Pt and 7 to 5 percent Cu. In a preferred embodiment, the composition of matter includes...
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6723281 |
Metal material for electronic parts, electronic parts, electronic apparatuses, and method of processing metal materials
The present invention relates to a metal material for electronic parts, electronic parts, electronic apparatuses, a method of processing metal materials, and electro-optical parts. For example, the...
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6413649 |
Silver-copper-nickel infiltration brazing filler metal and composites made therefrom
The present invention is directed to brazing filler metals that can be used in the infiltration brazing of porous matrix materials without the need for a flux. The brazing filler metals contain two...
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6210547 |
Enhanced solder surface and process for chemically and mechanically enhancing solder surface properties
A process for altering surface properties of a mass of metal alloy solder comprising a first metal and a second metal. The process comprises exposing the mass to energized ions to preferentially...
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5876862 |
Sliding contact material, clad compoosite material, commutator employing said material and direct current motor employing said commutator
Sliding contacts comprising alloys such as Pd/Cu/Ag, Pt/Cu/Ag, Pd/Cu/Ag/Ni, Pt/Cu/Ag/Ni, Ag/Pd/Cu,Au, Ag/Pt/Cu/Au and two-layered composites comprising a surface layer of one of the foregoing...
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5833774 |
High strength silver palladium alloy
A silver/palladium alloy for electrical contact applications comprises, on a weight percent basis, 20-50 silver, 20-50 palladium, 20-40 copper, less than 1.0 nickel, 0.1-5 zinc, 0.01-0.3 boron, and...
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5484569 |
Silver palladium alloy
A silver/palladium alloy for electronic applications comprises, on a percent by weight basis, 35-60 silver, 20-44 palladium, 5-20 copper, 1-7 nickel, 0.1-5 zinc, to 0.18 boron, up to 0.05 rhenium...
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5422190 |
Via fill paste and method of using the same containing specific amounts of silver, gold and refractory oxides
The present invention provides a new and useful via fill paste for use in the construction of electronic circuit devices. The unique via fill paste is capable of electrically connecting conductive...
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5242305 |
Method and composition for removing mercury vapor from dental restorations
The amount of mercury released from amalgam restorations in the teeth of living beings is significantly reduced without changing the composition of the silver-tin-copper alloy or changing the...
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5185125 |
Dental alloy and amalgam thereof
A dental alloy having, upon amalgamation, a desirable combination of physical properties and both a desirable condense time and carve time. The alloy contains from 48.75 to 50.75% silver, 20.25 to...
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5149362 |
Contact forming material for a vacuum interrupter
An Ag-Cu-WC contact forming material for a vacuum interrupter comprising a highly conductive component comprising Ag and Cu and an arc-proof component comprising WC wherein the content of the...
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5075285 |
Silver alloy sheathing material for ceramic superconducting wires
The invention relates to a sheathing material for superconducting wires which are deformed during manufacture by drawing or a similar procedure. The superconducting material of the wires is...
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5045411 |
Alloy compositions
A gold based alloy containing gold, silver, copper, zinc, silicon, iron, boron, nickel and indium for the manufacture of gold articles is described which has a lower melting point, extended...
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5037708 |
Silver palladium alloy
A silver colored metal alloy having improved tarnish resistance is disclosed, which is intended primarily for solid sterling jewelry and utensils and may also be used in silver plating, and does...
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5000779 |
Palladium based powder-metal alloys and method for making same
The subject of this invention is the development of new alloys along with new processing approaches for the utilization of the alloys. A particular class of alloys comprises at least one noble...
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4948557 |
Tarnish resistant gold colored alloy with enhanced gold color
A gold colored, tarnish and corrosion resistant alloy is disclosed, usable for jewelry, dental purposes and the like. The alloy consists essentially of 24 to 27 percent palladium, 19 to 22 percent...
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4895701 |
Gold colored alloy composition with zero percent gold
A gold colored, tarnish and corrosion resistant gold free alloy is disclosed, usable for jewelry, dental purposes and the like. The alloy consists essentially of 24 to 27 percent palladium, 19 to...
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4859240 |
Dental amalgam alloy
The present invention relates to a dental amalgam alloy comprising by weight, as alloying ingredients, from about 30 to 70% silver, from about 20 to 35% tin, from about 10 to 30% cooper, from 0 to...
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4775511 |
Method of sulfide tarnish inhibiting of silver-copper, silver-gold and silver-copper-gold alloys
Sulfide tarnish inhibiting of silver base alloys selected from the group consisting of Ag-Cu, Ag-Au, and Ag-Cu-Au is achieved by adding to silver base alloys at least one element with passivating...
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4664629 |
Dental composition mixture
By the present invention a dental alloy mixture is provided that is a combination of 20 to 70 percent by weight of cut alloy comprising silver, tin, and copper, with the copper present in an amount...
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4528034 |
Selenium-containing amalgam alloys for dental restoration and method for the preparation thereof
Selenium-containing amalgam alloys for dental restoration comprises 0.1-50% by weight of any one of the following alloy powders (A), (B) and (C) mixed with 50-99.9% by weight of the following...
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4522783 |
Metallic alloys to be used in dentistry
The present invention relates to a method for obtaining metallic alloys, to be used particularly in the field of dentistry. This method allows to accomplish a basic face-centered cubic lattice...
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4385892 |
Setting compositions for dental purposes
A novel setting composition for dental purposes comprises a dental silver amalgam alloy composed mainly of silver and tin, and including one or more of copper, zinc, indium, palladium and gold;...
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4374085 |
Silver-tin-copper-palladium alloy and amalgam thereof
A silver-tin-copper-palladium alloy containing from 30 to 70% silver, 15 to 37% tin, at least 13% copper and from 0.05 to 0.95% palladium; and an amalgam thereof.
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4370164 |
Yellow metal alloy
An alloy of about 4 to 10% gold, silver, copper, palladium, indium, zinc and boron producing an alloy with a pleasing yellow color. Tarnish resistance, wear resistance and heft are similar to 10...
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4369162 |
Silver base casting alloy for dental use
Silver base casting alloys for dental use which have a yellow color. They are useful for the manufacture of crowns, bridges and other dental prosthesis and such dental prosthesis are within the...
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4350527 |
Gold-colored, acid and corrosion resistant alloy
A gold-colored, acid and corrosion resistant alloy is disclosed, usable for jewelry, dental purposes and the like. The alloy consists essentially of 15 to 20 weight percent of indium, 7 to 20...
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4255191 |
Gold-silver alloys with good tarnish resistance for the dental art
Gold-silver alloys with good tarnish resistance for the dental art are prepared which, contrary to the known tarnish resistant alloys, still contain copper and thus have a deeper gold color and a...
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4149883 |
Electrical contact
The present invention provides electrical contacts having at least one contact surface consisting essentially of a silver palladium alloy containing 10-50 percent by weight palladium, 0.1-8 percent...
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4124380 |
Silver-copper-germanium alloys having high oxidation resistant melts
A silver-copper-germanium base alloy is disclosed consisting by weight of 40 to 85% silver, 15 to 60% copper and 0.1 to 10% germanium. Optionally, up to 15% by weight of the base alloy may be...
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3925066 |
Gold/silver alloys
A tarnish resistant Au/Ag alloy of low gold content exhibiting properties desired in jewelry manufacture consisting essentially of about 25 to 30 percent, by weight, gold, about 45 to 57 percent,...
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3411900 |
Brazing alloy composition
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3141761 |
Pulverized silver alloys for use in producing dental amalgams
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2947623 |
Precious metal rupture disc
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