Electron microscopic observation of interfaces of aluminium powder compacts prepared by spark plasma sintering

被引：12

作者：

Xie, GQ ^{[1
]}

Ohashi, O

Song, MH

Mitsuishi, K

Yasuda, H

Furuya, K

Noda, T

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan

来源：

JOURNAL OF ELECTRON MICROSCOPY | 2002年 / 51卷

关键词：

spark plasma sintering; Al powder compact; bonding interface; oxide film; SEM; HRTEM;

D O I：

10.1093/jmicro/51.Supplement.S149

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Aluminium (Al) powder compacts prepared with two kinds of sintering parameters in the spark plasma sintering process have similar density but there is a large difference in their electrical resistivity and tensile properties. The interfaces for the compacts with differing properties were investigated by means of scanning and high-resolution transmission electron microscopy. Two types of interfaces between the powder particles, with metal/metal grain bonding and metal/intermediate oxide film layer/metal grain bonding, were observed in compacts for the two sintering conditions. The properties of Al powder compacts were mainly attributed to the behaviour of oxide film between the particles. it was observed that in the compact containing many metal/metal grain bonding interfaces, the electrical resistivity was lower and the tensile properties were better.

引用

页码：S149 / S153

页数：5

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