ショットコーティングによりセラミックス表面に形成されたアルミニウム皮膜の残留応力特性

  • 伊藤 義康
    株式会社東芝電力・産業システム技術開発センター
  • 須山 章子
    Power and Industrial System R & D Center, Toshiba Corporation
  • 斎藤 雄二
    株式会社東芝電力・産業システム技術開発センター

書誌事項

タイトル別名
  • Residual Stress in Aluminium Coating on Ceramics Deposited by Shot Peening
  • ショットコーティング ニ ヨリ セラミックス ヒョウメン ニ ケイセイ サレタ アルミニウム ヒマク ノ ザンリュウ オウリョク トクセイ

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抄録

A shot coating process for metalizing at the surface of ceramics has been newly developed as the shot peening treatment. However, residual stress characteristics of shot coatings, which have an important effect on the adherent strength of coatings and the strength of ceramic substrates, have not always been clarified.<BR>An experimental investigation on the reseidual stress was carried out for the shot coating of aluminum powder on four kinds of sintered-ceramics, such as zinc oxide, zirconia, silicon nitride and silicon carbide. As a result, it was confirmed by X-ray diffraction technique that the residual stress of aluminum coatings over ceramics was always compressive irrespective to the kind of ceramic substrates. It was thought that the compressive residual stress of aluminum coatings was induced by the shot peening effect of aluminum particles and low thermal conduction of substrates.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 66 (5), 445-450, 2002

    公益社団法人 日本金属学会

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