Nano ZrO2–TiN composites with high strength and conductivity

Chun-Feng HU; Byung-Nam KIM; Young-Jo PARK; Mehdi ESTILI; Salvatore GRASSO; Koji MORITA; Hidehiro YOSHIDA; Toshiyuki NISHIMURA; Shu-Qi GUO; Yoshio SAKKA

doi:10.2109/jcersj2.123.86

Papers

Nano ZrO₂–TiN composites with high strength and conductivity

Chun-Feng HU, Byung-Nam KIM, Young-Jo PARK, Mehdi ESTILI, Salvatore GRASSO, Koji MORITA, Hidehiro YOSHIDA, Toshiyuki NISHIMURA, Shu-Qi GUO, Yoshio SAKKA

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Keywords: Composite, ZrO₂, TiN, Microstructure, Properties

JOURNAL FREE ACCESS

2015 Volume 123 Issue 1434 Pages 86-89

DOI https://doi.org/10.2109/jcersj2.123.86

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Abstract

Nano ZrO₂–TiN (10–40 vol.%) composites were successfully fabricated by spark plasma sintering (SPS) at 1200°C under 80 MPa. The as-obtained composites remained nanosized grains of ZrO₂ and TiN below 200 nm. The physical and mechanical properties of composites were systemically investigated. It was found that above 20 vol.% TiN the composites were electrically conductive. 30 and 40 vol.% TiN reinforced composites possessed the highest flexural strength of 1459.7 MPa and maximum electrical conductivity of 17081.7 S·m⁻¹ respectively.

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