Electrical resistivity of green powder compacts

被引：14

作者：

Lefebvre, LP

Pleizier, G

Deslandes, Y

机构：

[1] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada

[2] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R5, Canada

来源：

POWDER METALLURGY | 2001年 / 44卷 / 03期

关键词：

D O I：

10.1179/003258901666437

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Different parameters affect the electrical resistivity of green specimens. This paper presents the effect of the particle size distribution, the compacting pressure, and the oxidation of the powder on the electrical resistivity of green specimens fabricated with different powders (Fe, Zn, Ni, and Cu). The results show that the electrical resistivity increases when the compacting pressure decreases, the particle size is reduced and the oxidation increases. It indicates that the electrical resistivity is sensitive to powder surface characteristics and particle interfaces in green compacts. Electrical resistivity may therefore be used to study particle interfaces, evaluate green powder compact characteristics, and monitor powder oxidation. (C) 2001 IoM Communications Ltd.

引用

页码：259 / 266

页数：8

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