Evaluation of Surface Energy by MD Method and Crack Propagation Behavior of Single Crystalline SiC

Kouichi Haren; Hiromoto Kitahara; Kenichi Ikeda; Fuyuki Yoshida; Hideharu Nakashima; Hiroshi Abe

doi:10.14853/pcersj.2002F.0.65.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.65.0

Conference information

Host: The Ceramic Society of Japan

Evaluation of Surface Energy by MD Method and Crack Propagation Behavior of Single Crystalline SiC

Kouichi Haren, Hiromoto Kitahara, Kenichi Ikeda, Fuyuki Yoshida, Hideharu Nakashima, Hiroshi Abe

Author information

Keywords: Silicon Carbide, Vickers, Single Crystal, Crack, Molecular Dynamics, Surface Energy

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 65

Details

Abstract

It was found that fracture toughness K_Ic of single crystalline SiC depended on crystal orientation. K_Ic and surface energy γ_S have a close relation. This study was carried out to clarify the relationship between γ_S of crystal plane estimated by molecular dynamics (MD) method and crack propagation behavior. Estimated γ_S of (0001) was higher than that of other planes. Vickers indentation test showed that (0001) plane was highly resistant to crack propagation.

Corresponding author

Register with J-STAGE for free!