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The effect of TiO2 additives on the structural stability and thermal properties of yttria fully-stabilized zirconia

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Abstract

TiO2(0–20 mol%)-8 mol% YSZ (8YSZ) ceramics were synthesized by a traditional solid-state reaction method. A cubic single phase was observed for 8YSZ, 4 mol% TiO2-8YSZ and 8 mol% TiO2-8YSZ. Tetragonal and cubic mixed phases were observed for 12–20 mol% TiO2-8YSZ ceramics. The sintering temperature was 1,700 °C for 8YSZ and 4 mol% TiO2-8YSZ ceramics, whereas it was 1,500 °C for 8–20 mol% TiO2-8YSZ. The thermal conductivity at room temperature decreased in proportion to increasing TiO2 content, from 3.0 to 2.3 W/m K. The specific heat of TiO2-8YSZ ceramics was unaltered as the TiO2 content changed.

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  1. Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060, Nishikawatsu, Matsue, Shimane, 690-8504, Japan

    Hidetoshi Miyazaki

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  1. Hidetoshi Miyazaki
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Correspondence to Hidetoshi Miyazaki.

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Miyazaki, H. The effect of TiO2 additives on the structural stability and thermal properties of yttria fully-stabilized zirconia. J Therm Anal Calorim 98, 343–346 (2009). https://doi.org/10.1007/s10973-009-0297-8

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  • DOI: https://doi.org/10.1007/s10973-009-0297-8

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