HIPにおける実効の酸素分圧

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タイトル別名
  • Effective Oxygen Partial Pressure during HIP
  • HIP ニ オケル ジッコウ ノ サンソ ブンアツ

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SrTiO3 ceramics were reduced both by HIP and by Ar-O2 mixed gas at 1300°C. The degree of reduction of the specimens was characterized by optical transmittance and electric conductivity. The degree of reduction of the HIPed specimens were depended on the HIP pressure. The degree of reduction was low at high pressure, but high at low pressure. The degree of reduction of the specimens HIPed under 100MPa was equivalent to the specimen reduced under the atmospheric pressure in which oxygen partial pressure was 101Pa. This result was explained by the concentration of oxygen included in Ar used as a pressure medium.

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