Synthesis of high pure Ti3AlC2 and Ti2AlC powders from TiH2 powders as Ti source by tube furnace

被引：49

作者：

Li Liang ^{[1
]}

Zhou Aiguo ^{[1
]}

Xu Lin ^{[1
]}

Li Zhengyang ^{[1
]}

Wang Libo ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Mat Sci & Engn, Jiaozuo 454000, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2013年 / 28卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Ti3AlC2; Ti2AlC; TiH2; Sn; Si; FABRICATION;

D O I：

10.1007/s11595-013-0786-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium aluminum carbide (Ti3AlC2 and Ti2AlC) powders were synthesized from TiH2 powders instead of Ti powders as Ti source by a tube furnace under argon atmosphere without preliminary dehydrogenation. 95 wt% pure Ti3AlC2 powders were synthesized from TiH2/1.1Al/2TiC at 1 450 A degrees C for 120 min. High-purity Ti2AlC powders were also prepared from 3TiH(2)/1.5Al/C and 2TiH(2)/1.5Al/TiC powders at 1 400 A degrees C for 120 min. The as-synthesized samples were porous and easy to be ground into powders. Sn or Si additives in starting materials increased the purity of synthesized Ti3AlC2 obviously and expanded the temperature range for the synthesis of Ti3AlC2. With Si or Sn as additives, high pure Ti3AlC2 was synthesized at 1 200 A degrees C for 60 min from TiH2/x Si/Al/2TiC and TiH2/x Sn/Al/2TiC (x = 0.1, 0.2), respectively.

引用

页码：882 / 887

页数：6

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