Preparation of Nb-40Ti powders by high-energy milling

被引：1
|
作者：
Giffoni, YA [1 ]
Ramos, ECT
Ramos, AS
Sandim, HRZ
Pacheco, MTT
机构：
[1] UNIVAP, Inst Pesquisa & Desenvolvimento, BR-12244000 Sao Jose Dos Campos, SP, Brazil
[2] FAENQUIL, Dept Mat Engn, BR-12600000 Lorena, SP, Brazil
来源：
ADVANCED POWDER TECHNOLOGY IV | 2005年 / 498-499卷
关键词：
titanium alloys; biomaterials; mechanical alloying;
D O I：
10.4028/www.scientific.net/MSF.498-499.146
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Porous Ti-Nb alloys are promising candidates for biomedical applications. In the present study, alloy powders containing 60 wt-% Nb were prepared by high-energy milling of Nb, Ti, and/or TiH2 powders. The high-energy milling process was carried out in a planetary ball mill. The starting and as-milled materials were characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM). Elemental (Nb, and Ti) and TiH2 powder mixtures with composition Nb-40wt%Ti were mechanically alloyed for 2 to 30 h. The formation of a BCC Nb(Ti) solid solution by high-energy milling using elemental Ti powder to produce Nb-40Ti was observed after milling for 30 h. A HCP-Ti solid solution was formed after milling for 30 h due to the partial decomposition of titanium hydride powder mixture during high-energy milling.
引用
收藏
页码：146 / 151
页数：6
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