Journal of Inorganic Materials ›› 2017, Vol. 32 ›› Issue (12): 1332-1336.doi: 10.15541/jim20170089

• Orginal Article • Previous Articles     Next Articles

Laser Ablation Behavior of W/ZrC Cermet Fabricated by Displacive Compensation of Porosity (DCP) Method

Yi-Ping YU, Song WANG(), Wei LI   

  1. Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, National University of Defense Technology, Changsha 410073, China
  • Received:2017-02-23 Online:2017-12-20 Published:2017-11-21
  • Supported by:
    Foundation of Shanghai Aerospace Science and Technology;Aid Program for Innovative Group of National University of Defense Technology;Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province

Abstract:

W/ZrC cermet was successfully fabricated by a Displacive Compensation of Porosity method, and then laser ablation behaviors of W/ZrC cermet under different laser energy and ablation time were studied. Results showed that a small ablation pit was produced on the W/ZrC cermet during the laser ablation, and depth of the ablation pit increased with increasing laser power and prolonging ablation time. Besides, several homocentric loops which had different kinds and microstructures of oxides were formed around the ablation pit. The volatilization of residual Cu and formation of ZrO2 layer played significant roles in protecting W/ZrC cermet from being further oxidized during the laser ablation.

Key words: W/ZrC cermet, laser ablation, microstructure

CLC Number: 

  • TQ174