β″‐アルミナの疲労寿命と破壊過程

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タイトル別名
  • Fatigue lifetime and fracture process of .BETA."-alumina
  • ベータ - アルミナ ノ ヒロウ ジュミョウ ト ハカイ カテイ ガン トウロ

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抄録

The influential factors on the fatigue behavior of the solid electrolyte β"-alumina are measured. The static fatigue life depends markedly on the environment. It appears in air at room temperature, where the water vapor in the air apparently affects β"-alumina, but does not appear at elevated temperatures or in a vacuum. Furthermore, the cyclic fatigue lifetime does not depend on the number of cycles but only on the loading time. Fractographic observations suggest that the lifetime is mainly dominated by the crack growth behavior in the large platelike crystals.

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