Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (8): 864-868.DOI: 10.15541/jim20130584

• Orginal Article • Previous Articles     Next Articles

High Temperature Hydrogenation Behavior of Bulk Titanium Aluminum Carbide

CHEN Chen1, 2, ZHANG Hai-Bin2, PENG Shu-Min2, ZHAO Lin-Jie2, ZHU Jian-Guo1   

  1. (1. College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China; 2. Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics, Mianyang 621900, China)
  • Received:2013-11-12 Revised:2014-01-18 Published:2014-08-20 Online:2014-07-15
  • About author:CHEN Chen. E-mail: 16111612@qq.com
  • Supported by:
    National Natural Science Foundation of China(91326102);Science and Technology Development Foundation of China Academy of Engineering Physics(2012B0302035, 2013A0301012)

Abstract:

Ti3AlC2 is a new type of nano-layered machinable ceramic with numerous salient properties. Therefore, recently it is considered to be a promising candidate for new generation reactors as the key structural material. In this work, the reaction product and material morphology between nano-layered Ti3AlC2 and hydrogen were investigated by XRD, SEM, EDS, XPS and Raman. The resulted gaseous products were calculated by Factsage sofeware. Under the condition of 700-1000℃, hydrogen atmosphere (low oxygen pressure), solid products are Al2O3, TiO2 and C and gaseous product is CH4. Hydrides are not detected in the current experiments. The SEM results indicate that the reacted samples keep intact and cracks are not formed on the surface, indicating the high temperature thermal stability of Ti3AlC2 in hydrogen. These results can be attributed to the formation of oxides on the surface of specimens.

Key words: Ti3AlC2, hydrogen atmosphere, thermal stability, hydrogen resistance

CLC Number: