发明名称 |
Method for making silver-palladium alloy powders by areosol decomposition. |
摘要 |
<p>A method for the manufacture of fully densified, finely divided particles of silver-palladium alloy comprising the sequential steps: A. Forming an unsaturated solution of a mixture of thermally decomposable silver-containing compound and a thermally decomposable palladium-containing compound in a thermally volatilizable solvent; B. Forming an aerosol consisting essentially of finely divided droplets of the solution from step A dispersed in a carrier gas, the droplet concentration which is below the concentration where collisions and subsequent coalescence of the droplets results in a 10% reduction in droplet concentration; C. Heating the aerosol to an operating temperature above the decomposition temperature of both the silver-containing compound and the palladium-containing compound but below the melting point of a silver-palladium alloy by which (1) the solvent is volatilized, (2) the silver-containing compound and the palladium-containing compound are decomposed to form finely divided particles of silver, palladium, silver-palladium alloy, or mixtures thereof, and (3) the particles form an alloy and are densified; and D. Separating the particles of silver-palladium alloy from the carrier gas, reaction by-products and solvent volatilization products.</p> |
申请公布号 |
EP0662521(A2) |
申请公布日期 |
1995.07.12 |
申请号 |
EP19950100044 |
申请日期 |
1995.01.03 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY;THE UNIVERSITY OF NEW MEXICO |
发明人 |
GLICKSMAN, HOWARD DAVID;KODAS, TOIVO TARMO;PLUYM, TAMMY CAROL |
分类号 |
B22F9/30;(IPC1-7):C22C5/06;C22C5/04 |
主分类号 |
B22F9/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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