9 August 2013 Micromechanical study on thermo-mechanical behavior of Ti-ZrO2 graded composites fabricated by spark plasma sintering
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Proceedings Volume 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering; 87931C (2013) https://doi.org/10.1117/12.2026678
Event: Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 2013, Gold Coast, Australia
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.
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Hideaki Tsukamoto, Hideaki Tsukamoto, Yoshiki Komiya, Yoshiki Komiya, Hisashi Sato, Hisashi Sato, Yoshimi Watanabe, Yoshimi Watanabe, "Micromechanical study on thermo-mechanical behavior of Ti-ZrO2 graded composites fabricated by spark plasma sintering", Proc. SPIE 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 87931C (9 August 2013); doi: 10.1117/12.2026678; https://doi.org/10.1117/12.2026678
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