Indexed by:Journal Papers
Date of Publication:2019-12-01
Journal:JOURNAL OF ADVANCED CERAMICS
Included Journals:SCIE
Volume:8
Issue:4
Page Number:527-536
ISSN No.:2226-4108
Key Words:ultrahigh temperature ceramic; in-situ reaction; interlocking microstructure; mechanical property
Abstract:Self-toughening ZrB2-SiC based composites are fabricated by in-situ reactive hot pressing. The effect of sintering additive content on the microstructure and mechanical properties of the composites is investigated. Microstructure observation found that the in-situ reactive hot pressing could promote the anisotropic growth of ZrB2 grains and the formation of interlocking microstructure. Such microstructure could improve the mechanical properties, especially, for the fracture toughness. The improved mechanical properties could be attributed to the self-toughening structure related to the ZrB2 platelets and the formed interlocking microstructure, which could trigger various toughening mechanisms such as grain pull-out, crack bridging, crack deflection, and crack branching, providing the main contribution to the high fracture toughness.
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:日本京都大学
Degree:Doctoral Degree
School/Department:力学与航空航天学院
Discipline:Aerospace Mechanics and Engineering. Materials Science
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