高级检索
无机材料学报

无机材料学报 >

2009 , Vol. 24 >Issue 3: 623 - 626

DOI: https://doi.org/10.3724/SP.J.1077.2009.00623

研究论文

3Ti/Si/2C/0.2Al粉体在空气中燃烧合成Ti3SiC2

  • 梁宝岩 ,
  • 王明智 ,
  • 孙金峰 ,
  • 韩 欣 ,
  • 李晓普
展开
  • 亚稳材料制备技术与科学国家重点实验室, 燕山大学, 秦皇岛 066004

收稿日期: 2008-09-12

  修回日期: 2008-12-12

  网络出版日期: 2009-05-20

收起

Combustion Synthesis of Ti3SiC2 in Air from 3Ti/Si/2C/0.2Al Powder Mixtures

  • LIANG Bao-Yan ,
  • WANG Ming-Zhi ,
  • SUN Jin-Feng ,
  • HAN Xin ,
  • LI Xiao-Pu
Expand
  • Key Laboratory of Metastable Materials Science & Technology, Yanshan University,Qinhuangdao 066004, China

Received date: 2008-09-12

  Revised date: 2008-12-12

  Online published: 2009-05-20

Fold

摘要

采用机械活化的3Ti/Si/2C/0.2Al单质粉体为原料，在空气中发生自燃反应，成功地合成了Ti3SiC2基材料. 采用XRD、SEM和EDS等手段,分析了合成产物的相组成和微观结构特征. 结果表明，机械合金化3Ti/Si/2C/0.2Al单质混合粉体，不仅细化了粉体颗粒，而且产生严重的晶格畸变，从而明显提高了粉体的反应活性. 把机械活化的粉体暴露在空气中，会发生剧烈的燃烧反应，并引发自蔓延反应，合成Ti3SiC2，冷却后变成多孔块体产物. 燃烧产物由Ti3SiC2、TiC和微量氧化物组成. 产物中Ti3SiC2含量约为83wt%. 产物表层比较致密和均匀，而内部则粗糙且多孔. 产物的表面是以Al2O3和TiO2为主相的氧化膜，氧化物颗粒大小约为2~4μm. 氧化膜厚度约为5~10μm，比较致密. 内部为Ti3SiC2和TiC材料，板条状Ti3SiC2晶粒长约20~40μm，宽约2~4μm，发育完善. 粒状TiC晶粒大小约为3μm.

关键词： Ti3SiC2; 机械活化; 燃烧反应

本文引用格式

梁宝岩 , 王明智 , 孙金峰 , 韩 欣 , 李晓普 . 3Ti/Si/2C/0.2Al粉体在空气中燃烧合成Ti3SiC2[J]. 无机材料学报, 2009 , 24(3) : 623 -626 . DOI: 10.3724/SP.J.1077.2009.00623

Abstract

Ti3SiC2 based material was successfully synthesized by self combustion in air using mechanically activated 3Ti/Si/2C/0.2Al powders as starting materials. Phase composition and microstructure of the material were characterized by means of XRD and SEM, the composition of sample was determined through EDX. Mechanical alloying of 3Ti/Si/2C/0.2Al powder mixtures may refine the powder particles and produce the severe lattice distortion, which significantly improves the reaction activities of the powders. When the powder mixture is exposed to the air, it self-ignited spontaneously and self-propagating high temperature synthesis (SHS) of titanium silicon carbide (Ti3SiC2) is induced. After cooling, a porous sample is obtained. The sample is composed of Ti3SiC2,TiC and tiny amounts of oxide. The content of Ti3SiC2 in the sample is about 83wt%. Surface of the sample is relatively uniform and dense, but the fracture is rough and porous. Surface layer of the sample consists mainly of Al2O3 and TiO2 grains with a size of 24μm. The oxidation film thickness is 510μm. The inner of the sample is a mixture of Ti3SiC2 and TiC. Lath Ti3SiC2 grains are 2040μm in length and 24μm in width. TiC grains are about 3μm in dimension.

Key words： Ti3SiC2; mechanical activation; combustion synthesis

参考文献

1］Zhang Jianfeng, Wang Lianjun, Jiang Wan, et al. Mater. Sci. Eng. A, 2008,487(1):137-143.
［2］Zhang Jianfeng, Wu Ting, Wang Lianjun, et al. Composites Science and Technology, 2008, 68(2): 499-505.
［3］Li ShiBo, Xie JianXin, Zhang LiTong, et al. Mater. Sci. Eng. A, 2004, 381(1-2): 51-56.
［4］Wan D T, Zhou Y C, Bao Y W, et al. Ceram. Int., 2006, 32(8):883-890.
［5］Luo YongMing, Pan Wei, Li ShuQin, et al. Mater. Lett., 2003, 57(16-17):2509-2514.
［6］Zan Qingfeng, Dong Limin, Wang Chen, et al. Ceram. Int., 2007, 33(3):385-388.
［7］Pan Wei, Shi SuiLin. J. Euro. Ceram. Soc., 2007, 27(1):413-417.
［8］Benko E, Klimczyk P, Mackiewicz S, et al. Diam. Relat. Mater., 2004, 13(3):521-525.
［9］Zhang Yi, Sun Zhimei, Zhou Yanchun. Mater. Res. Innov.,1999, 3(2):80-84.
［10］朱达炎,朱教群,梅炳初,等.武汉理工大学学报,2005,27(12):1-4.
［11］Sun Z M, Zhang Y, Zhou Y C. Scrip. Mater., 1999,41(1):61-66.
［12］Yang Songlan, Sun Zhengming, Hitoshi Hashimoto, et al. J. Euro. Ceram. Soc., 2003, 23:3147-3152.
［13］Li H, Chen D, Zhou J, et al. Mater. Lett., 2004, 58(11): 1741-1744.
［14］Li JingFeng, Matsuki Toshiro, Watanabe Ryuzo. J. Am. Ceram. Soc., 2005,88(5):1318-1320.
［15］Li ShiBo, Zhai HongXiang. J. Am. Ceram. Soc., 2005,88(8): 2092-2098.
［16］Orthner H R, Tomasi R, BottaF W J. Mater. Sci. Eng. A, 2002, 336(1): 202-208.
［17］Jin Songzhe, Liang Baoyan, Li Jingfeng, et al. J. Mater. Process Tech., 2007, 182(1): 445-449.
［18］杨淑珍，周和平.无机非金属材料测试实验. 武汉: 武汉工业大学出版社. 1990：75-83.
［19］Zhang Z F, Sun Z M, Hashimoto H. Metall. Mater. Trans., 2002, 33(11):3321-3328.
［20］Gu Y W, Goia L S, Jarfors A E W, et al. Physica B, 2004,352(1-4):299-304.
［21］Zhang H B, Zhou Y C, Bao Y W, et al. Acta Mater., 2004, 52(12):3631-3637.
［22］Gauthier Veronique, Cochepin Benot, Dubois Sylvain, et al. J. Am. Ceram. Soc., 2006,89(9):2899-2907.
Options
文章导航

/

〈 〉