发明名称 METHOD OF PREPARING SILVER-PALLADIUM ALLOY POWDER
摘要 powder metallurgy. SUBSTANCE: silver-palladium (7:3) alloy cast in the form of granules is dissolved in nitric acid, solution treated with sodium hydroxide to pH 4.5-5.0, and silver and palladium salts (summary content 80-100 g in 1 l of solution) are then simultaneously reduced with 150- 200% molar excess of sodium formate at 65-70 C. Resultant metal powder is washed, dried, and annealed in reductive medium at 450-470 C for 1.5-2.0 h. X-ray examinations confirmed silver-palladium alloy phase structure of powder. Pastes prepared from the alloy powder exhibit strong adhesion with dielectric surface and provide high level electric parameters of capacitors. EFFECT: improved consumer's properties. 4 cl, 2 dwg, 1 tbl
申请公布号 RU2150354(C1) 申请公布日期 2000.06.10
申请号 RU19990101707 申请日期 1999.02.01
申请人 OAO "EKATERINBURGSKIJ ZAVOD PO OBRABOTKE TSVETNYKH;METALLOV 发明人 TIMOFEEV N.I.;BOGDANOV V.I.;GORBATOVA L.D.;KOREPANOV S.S.
分类号 B22F9/24;(IPC1-7):B22F9/24 主分类号 B22F9/24
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