Abstract
A high-purity, single-phase TiO2 ceramic with high density, strength, and electrical conduction was developed as a key structural material for the production equipment of semiconductors. Green bodies were made of high purity rutile TiO2 of very fine powder. They were sintered in air at 1200 °C for 2 h and then were hot isostatically pressed (HIPed) in argon at 1000°C, 150 MPa for 2 h. HIPed TiO2 ceramics were found to be electrically conductive and pore free. Their relative density, specific resistance, and bending strength were 100%, 1 Ω • cm, and 300 MPa, respectively. No strength degradation was found to the temperature up to 1000 °C. This material has high potential for use as electrically conductive structure materials in the semiconductor industry.
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Kishi, Y., Ogura, K., Kamata, K. et al. High strength, electrically conductive pore-free TiO2 ceramics made by hot isostatic pressing. Journal of Materials Research 12, 1056–1061 (1997). https://doi.org/10.1557/JMR.1997.0147
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DOI: https://doi.org/10.1557/JMR.1997.0147