Synthesis of high-purity Ti2A1N ceramic by hot pressing

被引：35
|
作者：
Yan Ming [1 ]
Chen Yan-lin [1 ]
Mei Bing-chu [2 ]
Zhu Jiao-qun [2 ]
机构：
[1] Hubei Univ Technol, Coll Chem & Environm Engn, Wuhan 430068, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2008年 / 18卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Ti(2)A1N; synthesis method; microstructure; hot pressing; sintering;
D O I：
10.1016/S1003-6326(08)60015-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
High-purity Ti2A1N ceramic was prepared at 1300 degrees C by hot pressing(HP) of Ti/Al/TiN powders in stoichiometric proportion. The sintered product was characterized using X-ray diffraction(XRD) and MDI Jade 5.0 software (Materials Data Inc, Liverpool, CA). Scanning electron microscopy(SEM) and electron probe micro-analysis(EPMA) coupled with energy-dispersive spectroscopy(EDS) were utilized to investigate the morphology characteristics. The results show that Ti(2)A1N phase is well-developed with a close and lamellar structure. The grains are plate-like with the size of 3-5 mu m, thickness of 8-10 mu m and elongated dimension. 3 The density of Ti(2)A1N is measured to be 4.22 g/cm(3), which reaches 97.9% of its theory value. The distribution of Ti2A1N grains is homogeneous.
引用
收藏
页码：82 / 85
页数：4
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