JP5424195B2 - 溶射用原粉末とそれを用いた皮膜生成方法 - Google Patents
溶射用原粉末とそれを用いた皮膜生成方法 Download PDFInfo
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- JP5424195B2 JP5424195B2 JP2009079607A JP2009079607A JP5424195B2 JP 5424195 B2 JP5424195 B2 JP 5424195B2 JP 2009079607 A JP2009079607 A JP 2009079607A JP 2009079607 A JP2009079607 A JP 2009079607A JP 5424195 B2 JP5424195 B2 JP 5424195B2
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発明2は、基材に溶射用原粉末を溶射して皮膜を形成する皮膜生成方法であって、前記溶射用原粉末として発明1に記載の溶射用原粉末を用いたことを特徴とする。
発明3は、発明2の皮膜生成方法において、基材に生成した皮膜に負膨張特性を発現させる熱処理を施すことを特徴とする。
また、本原粉末は、混合粉末であるから、その皮膜の目的に対応した材料を選択した後、混合される複合粉末の熱膨張率の変化を元に、両粒子の混合比率を調整するという手法で達成し得るものである。
さらに、発明3のようにすれば、皮膜内に強い圧縮応力を導入することができ、その分、皮膜をより緻密化させることができた。
また、実施例にて優れた耐食性が得られていることから、様々な気密性が要求される応用へも使用が可能と推測される。また、セラミックスであることから、高温での耐食皮膜としても利用できるものである。
実施例の結果から、プラズマ溶射に限らず、粒子を溶融し基材に吹き付け成膜するさまざまな溶射技術(高速フレーム溶射など)においても、同様に皮膜の緻密性改善ができるものである。
Claims (3)
- 溶射装置により、基材に加熱して吹き付けられて皮膜となる溶射用原粉末であって、負膨張材料粉末と正膨張材料粉末とを混合した混合粉末であることを特徴とする溶射用原粉末。
- 基材に溶射用原粉末を溶射して皮膜を形成する皮膜生成方法であって、前記溶射用原粉末として請求項1に記載の溶射用原粉末を用いたことを特徴とする皮膜生成方法。
- 請求項2の皮膜生成方法において、基材に生成した皮膜に負膨張特性を発現させる熱処理を施すことを特徴とする皮膜生成方法。
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JP2009079607A JP5424195B2 (ja) | 2009-03-27 | 2009-03-27 | 溶射用原粉末とそれを用いた皮膜生成方法 |
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JP2009079607A JP5424195B2 (ja) | 2009-03-27 | 2009-03-27 | 溶射用原粉末とそれを用いた皮膜生成方法 |
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JP2010229515A JP2010229515A (ja) | 2010-10-14 |
JP5424195B2 true JP5424195B2 (ja) | 2014-02-26 |
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Families Citing this family (2)
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WO2014156215A1 (ja) * | 2013-03-29 | 2014-10-02 | Jx日鉱日石金属株式会社 | タングステン酸ジルコニウム |
KR101680856B1 (ko) * | 2014-11-28 | 2016-11-30 | 주식회사 월덱스 | 세라믹 부품용 파우더를 이용한 플라즈마 식각장치의 세라믹 부품 및 그 제조방법 |
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US6132676A (en) * | 1997-06-30 | 2000-10-17 | Massachusetts Institute Of Technology | Minimal thermal expansion, high thermal conductivity metal-ceramic matrix composite |
US20030187117A1 (en) * | 2002-03-29 | 2003-10-02 | Starkovich John A. | Materials and method for improving dimensional stability of precision electronic optical photonic and spacecraft components and structures |
JP2005154885A (ja) * | 2003-03-26 | 2005-06-16 | Mitsubishi Heavy Ind Ltd | 遮熱コーティング材料 |
JP4771513B2 (ja) * | 2004-11-26 | 2011-09-14 | 日立ツール株式会社 | 耐熱性被覆部材 |
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