J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (06): 526-528.

• Research Articles • Previous Articles     Next Articles

Microstructure and Temperature Distribution in ZnAl2O4 Sintered Body by Pulse Electric Current

Dongming ZHANG, Zhengyi FU, Jingkun GUO   

  1. State Key Lab. of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-11-28 Published:2009-10-10
  • Contact: Dongming ZHANG

Abstract: Microstructure of reaction sintering of ZnAl2O4 at 1500ºC by hot-pressing(HP) and pulse electric current was investigated. The results indicated that the existed cracks in sintered body were caused by structure mismatch. It is the evidence that periodical temperature field existed during pulse electric current sintering of nonconductive materials. The distance between high temperature areas was related to die diameter.

Key words: Pulse electric current sintering, Reaction sintering, ZnAl2O4, Microstructure