Processing of NiTi Foams by Transient Liquid Phase Sintering

被引：21

作者：

Bansiddhi, Ampika ^{[2
]}

Dunand, David C. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] Kasetsart Univ, Fac Engn, Dept Mat Engn, Bangkok 10900, Thailand

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2011年 / 20卷 / 4-5期

关键词：

bone implant; eutectic; microstructure; porous; shape memory; SHAPE-MEMORY ALLOYS; SPACE-HOLDER; POROUS NITI; IMPLANTS; INFILTRATION; FABRICATION; NIOBIUM; NB;

D O I：

10.1007/s11665-010-9827-6

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Porous NiTi was produced by sintering pre-alloyed NiTi powders (with small Ni addition to form Ni-rich composition) with NaCl powders which are removed to create 40-60 vol.% macropores which are open to the surface, blocky in shape, and 100-400 mu m in size. The microporosity present between the NiTi powders is infiltrated by an in situ created NiTi-Nb eutectic liquid which, after solidification, densifies the NiTi powders into dense struts. This processing technique allows for separate control of the macroporous structure, and the densification and composition of the NiTi struts.

引用

页码：511 / 516

页数：6

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