Research on preparation of nano-grained cemented carbide by spark plasma sintering

被引：0

作者：

Wang, XQ ^{[1
]}

Xie, YF ^{[1
]}

Guo, HL ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2005年 / 34卷

关键词：

spark plasma sintering; nano-grained cemented carbide; sintering isostatic pressure;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

92WC-8Co powder mixtures with 33 nm WC grain were sintered by spark plasma sintering (SPS) and sintering isostatic pressure (SIP) respectively. The sample was. sintered to complete density by SPS at 1100 degrees C for 5 min. The best result of sample with 175 nm WC grains and 942 MPa hardness was obtained by SPS at 1150 degrees C and under 4.5 kN for 5 min. SIP was carried out at 1380 degrees C under 5 MPa for 30 min with a result of samples about 400 nm WC grains and 920 MPa hardness. The results show that sintering time is largely shortened, WC grain growth is effectively retarded and microstructures are finely improved, which is very useful to get excellent mechanical properties.

引用

页码：108 / 111

页数：4

共 15 条

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