Crack healing behavior of SiC whisker reinforced Si3N4 composite

Junfeng Hu; Shijie Zhu; Wenxue Wang; Yukiko Nakahara

doi:10.4028/www.scientific.net/MSF.750.15

Crack healing behavior of SiC whisker reinforced Si₃N₄ composite

Junfeng Hu, Shijie Zhu, Wenxue Wang, Yukiko Nakahara

Division of Renewable Energy Dynamics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

In this paper, SiC whisker reinforced Si₃N₄ composite was used for studying crack healing behavior. Surface crack and straight-through crack were introduced on the tensile surface of specimens by Vickers hardness indenter based on the single edge pre-crack beam method. The cracked specimens were heat-treated at 1000 °C, 1100 °C, 1200 °C and 1300 °C for 1 hour in air. Bending strength was measured at room temperature by three point bending tests. It was investigated that the best heat treatment temperature of Si₃N₄/SiC whisker composite is 1200 °C -1300 °C. The relationship between bending strength and logarithm of crack area was linear and parabola in original and heat-treated specimens, respectively. Crack healing behavior was analyzed by oxidation filling model according to oxidation kinetics.

Original language	English
Title of host publication	Advanced Materials Science and Technology
Pages	15-18
Number of pages	4
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.750.15
Publication status	Published - Apr 10 2013
Event	8th International Forum on Advanced Materials Science and Technology, IFAMST 2012 - Fukuoka City, Japan Duration: Aug 1 2012 → Aug 4 2012

Publication series

Name	Materials Science Forum
Volume	750
ISSN (Print)	0255-5476

Other

Other	8th International Forum on Advanced Materials Science and Technology, IFAMST 2012
Country	Japan
City	Fukuoka City
Period	8/1/12 → 8/4/12

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All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

Hu, J., Zhu, S., Wang, W., & Nakahara, Y. (2013). Crack healing behavior of SiC whisker reinforced Si₃N₄ composite. In Advanced Materials Science and Technology (pp. 15-18). (Materials Science Forum; Vol. 750). https://doi.org/10.4028/www.scientific.net/MSF.750.15

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Access to Document

10.4028/www.scientific.net/MSF.750.15