Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (3): 111-112.

• Report • Previous Articles     Next Articles

Pyrolysis of Polyborazinylamine Precursors of Boron Nitride Ceramics

Zhang Guangyou, Chen Zhaohui, Xiang Yiangchun   

  1. Department of Materials Engineering and Applied Chemistry, National University of De fence Technology, Changsha 410073
  • Received:1995-07-21 Revised:1995-12-29 Published:1996-06-10 Online:1996-06-10

Abstract: The pyrolysis of polyborazinylamine precursors leading to boron nitride(BN)ceramics has been studied by means of DTA-TG-GC,FTIR and XRD.The results show that the pyrolysis starts at 180℃ and the loss of 60% weight mainly occurs under 600℃.N2, NH3 and HCl are given off during pyrolysis and h-BN ceramics are obtained at 1600℃.

Key words: boron nitride, polyborazinylamine, pyrolysis