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7556189 Lead-free bonding systems  
Nano-structured interconnect formation and a reworkable bonding process using solder films. Large area fabrication of nano-structured interconnects is demonstrated at a very fine pitch. This...
7461772 Silver/aluminum/copper/titanium/nickel brazing alloys for brazing WC-Co to titanium alloys  
A brazing material including about 20 to about 60 percent by weight silver, about 1 to about 4 percent by weight aluminum, about 20 to about 65 percent by weight copper, about 3 to about 18 percent...
7198683 Sterling silver alloy compositions of exceptional and reversible hardness, and enhanced tarnish resistance  
A sterling silver alloy composition of exceptional and reversible hardness and enhanced tarnish resistance, consists essentially of the following parts by weight: at least about 92.5% silver; about...
7160632 Material for sliding contacts, clad composite material and small-sized DC motor using the same  
The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding...
7128871 Silver-colored alloy with low percentages of copper and zinc  
A silver-colored, tarnish-resistant, corrosion-resistant alloy is provided. The alloy includes 92.5–95% silver, combined with a master alloy of 24–34% zinc; 60–74% copper; 0.5–1.8% silicon;...
6936218 Silver braze alloy  
The present invention relates to a silver braze alloy having improved wetting properties. The silver braze alloy consists essentially of from about 52.25 wt % to about 57.0 wt % silver, from about...
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...
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...
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...
6726877 Silver alloy compositions  
Silver alloys having properties of fire scale resistance, reduced porosity and oxide formation and reduced grain size relative to traditional sterling silver alloys and useful work hardening...
6620378 Precious metal solder  
Platinum, silver and gold solder compositions for repairing, assembling, or sizing jewelry. Platinum compositions having about 90% to about 95% by weight platinum. Silver compositions having at...
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...
6406664 Silver germanium alloy  
A fire stain and tarnish resistance silver composition containing germanium, tin, and trace amounts of boron and nickel, as well as copper.
6399019 Brazing material for use in joining a metal plate to a ceramic substrate  
A metal-ceramic composite substitute is produced by joining a metal plate to a ceramic substrate by using a brazing material in a paste form prepared by adding 10-14 parts by weight of a vehicle to...
5972131 Ag-Cu alloy for a sliding contact  
An Ag--Cu alloy for a sliding contact containing: a) 0.1 to 8.0 wt. % of Cu, based on the weight of the alloy, wherein at least 70 wt. % of the Cu contained in the alloy is solid-solubilized in...
5955686 Brazing materials for producing metal-ceramics composite substrates  
A brazing material having 0.25-0.9 wt % of titanium oxide added to a basic formula consisting of 60-94.25 wt % Ag, 5-30 wt % Cu and 0.5-4.5 wt % of an active metal is processed to form a paste,...
5922479 Brazing alloy and composite assembly joined by using the same  
A brazing alloy for joining a pair of members at least one of which is a metallic member, contains Ag, Cu, In and Ti, and further contains from 0.03 wt. % to 1.2 wt. % Ni. A composite assembly of...
5916520 Brazing fillers for sealing vacuum-tight vessels, vacuum-tight vessels and method for manufacturing vacuum-tight vessels  
The brazing filler of the present invention is excellent in wetting properties towards the open end of a ceramic cylinder and a metal sealing cap can be sealed well on the open end. The present...
5882441 Silver colored alloy with low percentage copper  
A silver colored alloy, highly tarnish resistant, corrosion resistant and brittleness free is provided. The alloy includes 90% to 94% by weight silver, 3.50% to 7.35% by weight zinc, 1% to 3% by...
5593514 Amorphous metal alloys rich in noble metals prepared by rapid solidification processing  
Amorphous metal alloys rich in noble metals prepared by rapid solidification processing are disclosed. The alloys have at least a ternary composition having the formula M a G1 b G2 c , wherein M...
5558833 Silver alloy  
A silver alloy having a reduced porosity surface after it has been cast in a mold is disclosed. The silver alloy consists of silver in a range from 92.50 to 99.00 percent by weight, indium in a...
5490870 Amalgamable composition and method of production  
A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component...
5425819 Magnetoresistive material  
A granule-type magnetoresistive material is used to form a MR component, which is equipped in a magnetic head, or the like. When placing the magnetoresistive material in the external magnetic...
5352542 Use of silver alloys as cadium-free brazing solder  
Cadmium-free brazing solders which also have working temperatures under 630° C. containing 45 to 80 wt. % silver, 5 to 25 wt. % copper, 10 to 25 wt. % gallium, and 0.1 to 5 wt. % indium and/or tin.
5330098 Silver-copper-aluminum-titanium brazing alloy  
An alloy for brazing ceramics has the following composition, in weight percent: 0.5 to 3% titanium; 0.25 to 2% aluminum, silicon or tin; 2 to 6% copper; balance silver.
5250229 Silver-rich conductor compositions for high thermal cycled and aged adhesion  
The invention is directed to a thermal cycle adhesion additive composition consisting essentially of an admixture of finely divided particles of oxides of bismuth, copper, lead, zinc, and...
5242511 Copper alloy compositions  
A copper alloy composition comprising 100 parts by weight of powder of copper alloy represented by the general formula Ag x Cu y (wherein x and y are atomic ratio values; 0.001≤×≤0.999,...
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...
5198154 High temperature baking paste  
A composition, which comprises copper alloy powder represented by a general formula Ag x Cu y M z (where M represents one or more metals selected from Pb, Bi and Zn; x, y and z are atomic ratio...
5021214 Ag alloy of high discoloration resistance  
Ag allow generally used for decorative purposes such as silverware and accessories, including In and Al as a substitute for conventionally used Pd provides the products with high discoloration...
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...
4971759 Metallic material for flutes  
In the composition of a Ag alloy type material used for production of flutes, a specified amount of at least one of Ni, Fe, Co and Cr or at least one of Mn, Ti, Zi and Si is added to suppress...
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...
4883745 Silver-copper-titanium brazing alloy containing crust inhibiting element  
A silver-copper-titanium brazing alloy contains a small amount of tin, indium, silicon, aluminum or manganese as a crust inhibiting element.
4869757 Silver alloys of exceptional and reversible hardness  
A unique hardenable silver alloy is provided which is solution annealed and preferably age-hardened to yield a silver alloy of exceptional and reversible hardness. The alloys utilize intermetallic...
4859412 Method of producing alloyed powders for dental amalgams  
An economical alloyed powder for dental amalgams exhibiting good working properties is obtained from pressed and sintered molded bodies by mechanical comminution. The formed body is produced by...
4842955 Homogeneous, metastable BAg-group brazing alloys  
A brazing foil is composed of metastable material having a microcrystalline structure and a composition consisting essentially of about 15 to 40 weight percent copper, 0 to 32 weight percent zinc,...
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...
4766041 Ductile low temperature brazing alloy  
Reactive metal silver alloys containing controlled levels of copper, aluminum or mixtures thereof liquidus temperatures in the range of from about 750° C. to about 950° C., are ductile and after...
4735866 Copper-silver-titanium-tin filler metal for direct brazing of structural ceramics  
A method of joining ceramics and metals to themselves and to one another at about 800° C. is described using a brazing filler metal consisting essentially of 35 to 50 at. % copper, 40 to 50 at. %...
4726858 Recording material  
A recording material made of an alloy capable of exhibiting different spectral reflectances at an equal temperature, depending on a heating-cooling cycle to which the alloy is subjected. The alloy...
4721539 Large single crystal quaternary alloys of IB-IIIA-SE.sub.2 and methods of synthesizing the same  
New alloys of Cu x Ag (1-x) InSe 2 (where x ranges between 0 and 1 and preferably has a value of about 0.75) and CuIn y Ga (1-y) Se 2 (where y ranges between 0 and 1 and preferably has a value...
4714189 Brazing eutectic and method  
A sensor for assessing conditions within a metallic high pressure boiler 10, has a sensitive tip section 12, which is insulated from the boiler by virtue of a ceramic spacing member 101. The joins...
4698271 Copper-silver-titanium filler metal for direct brazing of structural ceramics  
A method of joining ceramics and metals to themselves and to one another is described using a brazing filler metal consisting essentially of 35 to 50 atomic percent copper, 15 to 50 atomic percent...
4664855 Method for producing amalgamable alloy  
A process for manufacturing an atomized amalgamable alloy having mold adaptation characteristics superior to other atomized alloys and comparable or better than those for ad-mixed type alloys...
4591535 Method of brazing ceramics using active brazing alloys  
An article is disclosed consisting essentially of a ceramic substrate bonded to a metal or ceramic member by a brazing alloy. In these processes, the ceramic surface is prepared such that it is...
4565590 Silver and metal oxides electrical contact material and method for making electrical contacts  
The invention relates to a material for electrical contacts, in particular for contact studs in low-voltage switchgear. The material consists of silver, tin oxide and other additives. A material is...
4563541 Package providing high heat dissipation, in particular for microelectronics  
A package of the flatpack type for microelectronic circuits comprises a metal base of material having good heat conductivity on which a metal frame is mounted by means of a hard brazing alloy. The...
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...
4453977 Low silver containing dental amalgam alloys  
Conventional or non-conventional dental amalgam alloys in the form of lathe-cut, spherical shaped or irregular shaped particles of silver, tin, copper and zinc are improved by adding to the alloys...
Matches 1 - 50 out of 82 1 2 >