Stock material or miscellaneous articles – All metal or with adjacent metals – Composite powder
Patent
1978-11-28
1981-01-06
Silverberg, Sam
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite powder
427217, 427214, 428403, 252 12, 252 26, B22F 0000
Patent
active
042437288
ABSTRACT:
A double-metal-coated metal sulfide powder comprises particles of a metal sulfide, a layer of a platinum group metal coating formed thereon, and an outer coating layer of a metal or alloy which contains at least one of iron, copper, nickel, and cobalt. The powder is obtained by forming a platinum group metal layer on metal sulfide particles by thermal decomposition of a plating composition which includes at least one platinum-metal compound containing a radical selected from the class consisting of NO, NO.sub.2, NO.sub.3, and NOCl and then forming a layer of at least one metal selected from the group consisting of iron, copper, nickel, and cobalt by the cementation reaction.
Kawasumi Yoshio
Sato Haruki
Nihon Kogyo Kabushiki Kaisha
Silverberg Sam
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