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Proceedings Paper

Micromechanical study on thermo-mechanical behavior of Ti-ZrO2 graded composites fabricated by spark plasma sintering
Author(s): Hideaki Tsukamoto; Yoshiki Komiya; Hisashi Sato; Yoshimi Watanabe
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Paper Abstract

The aim of this study is to investigate thermo-mechanical response of ZrO2/Ti functionally graded materials (FGMs) fabricated by spark plasma sintering (SPS) based on a mean-field micromechanics model, which takes account of micro-scale stress relaxation due to interfacial diffusion between ceramic and metal phases as well as creep of both phases. A resistance to cyclic thermal shock loadings of FGMs with different compositional gradation patterns including Ti-rich, linear and ZrO2-rich gradation patterns has been investigated. The results demonstrate that Ti-rich FGMs show superior properties among the tested FGM samples. Mean-field micromechanics-based examinations reveal that the range and ratio of thermal stresses in ZrO2 surface layers in FGMs can affect cyclic thermal shock fracture behaviour but not mean thermal stresses.

Paper Details

Date Published: 9 August 2013
PDF: 6 pages
Proc. SPIE 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 87931C (9 August 2013); doi: 10.1117/12.2026678
Show Author Affiliations
Hideaki Tsukamoto, Nagoya Institute of Technology (Japan)
Yoshiki Komiya, Nagoya Institute of Technology (Japan)
Hisashi Sato, Nagoya Institute of Technology (Japan)
Yoshimi Watanabe, Nagoya Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 8793:
Fourth International Conference on Smart Materials and Nanotechnology in Engineering
Jayantha A. Epaarachchi; Alan Kin-tak Lau; Jinsong Leng, Editor(s)

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