Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第15卷    第10期    总第79期    2005年10月

[PDF全文下载]        

    

文章编号: 1004-0609(2005)10-1550-05
TiC掺杂对热压合成Ti2AlC材料的影响
王 苹1, 2,梅炳初1, 洪小林1,朱教群1, 周卫兵1

(1. 武汉理工大学 材料复合新技术国家重点实验室, 武汉 430070;
2. 武汉理工大学 理学院, 武汉 430070
)

摘 要:  采用热压工艺合成了Ti2AlC块体材料。在不同温度时, 通过X射线衍射分析了掺入不同含量TiC混合粉经热压合成试样的物相组成,并采用SEM观察所合成试样的显微结构。 结果发现: 完全以元素粉为原料不掺TiC的混合粉经1 500 ℃热压60 min合成Ti2AlC块体材料, 且产物中含有TiC和Ti3AlC2杂相; 掺入0.5 mol或1.0 mol TiC混合粉经1 400 ℃热压60 min后合成不含TiC且只含少量Ti3AlC2的Ti2AlC块体材料。同时, 探讨了TiC对合成Ti2AlC块体材料的影响机理。

 

关键字:  热压; 碳化铝钛; 碳化钛

Effect of TiC addition on synthesis of Ti2AlC
by hot pressing
WANG Ping1, 2, MEI Bing-chu1, HONG Xiao-lin1, ZHU Jiao-qun1,
ZHOU Wei-bing

1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
2. School of Science, Wuhan University of Technology, Wuhan 430070, China

Abstract: Ti2AlC bulk materials were synthesized by hot pressing mixture powders with different contents of TiC addition. X-ray diffractrometry was used to detect the phase composition and scanning electron microscopy (SEM) was used to investigate the microstructures of samples synthesized at different temperatures. The results show that Ti2AlC bulk materials can be synthesized by hot pressing elemental mixture powders without TiC addition at 1 500 ℃ for 60 min, in which TiC and Ti3AlC2 exist as secondary phases. By adding 0.5 mol or 1.0 mol TiC into the raw mixtures, Ti2AlC can be fabricated by hot pressing at 1 400 ℃ for 60 min, and there exist only a small amount of Ti3AlC2 as secondary phase. At the some time, the effect mechanism of TiC on synthesis of Ti2AlC bulk materials were investigated.

 

Key words: hot pressing; titanium aluminum carbide; titanium carbide

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com