Fabrication and microstructure evolution of niobium-niobium silicide composites by spark plasma sintering

被引：0

作者：

Zhe Chen

Youwei Yan

机构：

[1] Huazhong University of Science & Technology,State Key Lab of Die & Mould Technology

来源：

Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2007年 / 22卷

关键词：

spark plasma sintering; Nb/Nb; Si; composites; fabrication; microstructure evolution;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

By using Nb and Si elemental powders as raw materials, dense Nb/Nb5Si3 composites were successfully fabricated by a spark plasma sintering (SPS) technology. The microstructure of the fabricated composites was analyzed by OM, SEM, XRD and EPMA; the microstructure evolution of the composites was also investigated by a quenching test. The experimental results show that the prepared composites consist of Nb and Nb5Si3 phases; Nb particle uniformly distributes in the in-situ synthesized Nb5Si3 matrix. During the SPS process, an interfacial reaction occurs between Nb and Si particles to synthesize Nb5Si3 until reactant silicon has been completely depleted.

引用

页码：299 / 302

页数：3