EFFECT OF CHROMIUM ON THE SINTERING OF COPPER-CHROMIUM MATERIALS.

被引：0

作者：

Dymchenko, V.A. ^{[1
]}

Popovich, A.P. ^{[1
]}

机构：

[1] Donetsk Polytechnic Inst, USSR, Donetsk Polytechnic Inst, USSR

来源：

| 1600年 / 25期

关键词：

ELECTRIC CONTACTS - Materials;

D O I：

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摘要：

Weight increases during sintering were indicative of reaction of chromium with the furnace atmosphere. Oxidizing processes predominate. By reducing copper and protecting it against hydrogen sickness, chromium enables a copper matrix of any starting porosity to shrink. When the amount exceeds that necessary for reduction, shrinkage decreases, and under certain conditions growth of specimens begins. Oxide-coated chromium particles behave as an inert filler. A similar influence is exerted during sintering of re-pressed specimens.

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