Studies of Shock-Activation of Silicon Nitride Powder

LU Fang-Yun; CAI Qing-Yu; ZHOU Xin-Gui; CHEN Gang; ZHOU An-Chen

doi:10.11858/gywlxb.1999.02.006

Volume 13 Issue 2

May. 2015

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Chinese Journal of High Pressure Physics > 1999 > 13(2): 115-119 .

LU Fang-Yun, CAI Qing-Yu, ZHOU Xin-Gui, CHEN Gang, ZHOU An-Chen. Studies of Shock-Activation of Silicon Nitride Powder[J]. Chinese Journal of High Pressure Physics, 1999, 13(2): 115-119 . doi: 10.11858/gywlxb.1999.02.006

Citation:

LU Fang-Yun, CAI Qing-Yu, ZHOU Xin-Gui, CHEN Gang, ZHOU An-Chen. Studies of Shock-Activation of Silicon Nitride Powder[J]. Chinese Journal of High Pressure Physics, 1999, 13(2): 115-119 . doi: 10.11858/gywlxb.1999.02.006

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Studies of Shock-Activation of Silicon Nitride Powder

doi: 10.11858/gywlxb.1999.02.006

Department of Applied Physics, National University of Defense Technology, Changsha 410073, China

More Information

Corresponding author: LU Fang-Yun
Received Date: 10 Aug 1998
Rev Recd Date: 24 Nov 1998
Publish Date: 05 Jun 1999

Abstract

Abstract

In this paper, we have studied the surface and microscopic features of the silicon nitride powders, which have been activated by shock waves in two pressures: 15.7 GPa and 25.6 GPa, and the sintering features of the ceramics sintered from the activated powders. The results show that the shock-activation plays an apparent role on promoting densification of the powders during sintering.
- shock activation,
- silicon nitride,
- dislocation