Microstructure and Mechanical Properties of HA/ZrO2 Coatings by Gas Tunnel Plasma Spraying

Morks, Magdi F.; Kobayashi, Akira

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タイトル	Microstructure and Mechanical Properties of HA/ZrO2 Coatings by Gas Tunnel Plasma Spraying
著者	Morks, Magdi F. Morks, Magdi F.
著者	Kobayashi, Akira Kobayashi, Akira
キーワード等	Gas Tunnel Plasma
	HA/ZrO₂
	Microstructure
	Hardness
	Abrasive Wear
	Adhesion
抄録	The gas tunnel plasma spraying method was employed to deposit HA/ZrO₂ composite coatings on SUS 304 substrate in an atmospheric chamber. The design of the plasma torch allows for the external and internal feeding of the sprayed powder. Pure HA powder was fed externally and ZrO₂ powder was fed internally. The feeding rate was controlled to deposit HA/ZrO₂ coatings with different zirconia contents. Two sprayed coatings with different zirconia contents were obtained. The influence of ZrO₂ and its volume fraction on the microstructure and mechanical properties of HA/ZrO₂ composite coatings was investigated. A comparison between the microstructure and mechanical properties of pure HA and HA/ZrO₂ composite coatings was made. Scanning electron micrographs of the coatings cross-sections showed good adhesion between the coatings and the substrate and also the dense structure of the coatings. The presence of ZrO₂ improved the hardness and abrasive wear resistance of the composite coatings compared with the pure HA coatings.
公開者	大阪大学接合科学研究所
公開者の別表記	Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)	オオサカダイガクセツゴウカガクケンキュウジョ
掲載誌名	Transactions of JWRI
巻	36
号	1
開始ページ	47
終了ページ	51
刊行年月	2007-07
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/11025
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.36 No.1 (2007-07)

著者版フラグ	publisher
NII資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI.36(1) P.47-P.51
DC.title	Microstructure and Mechanical Properties of HA/ZrO2 Coatings by Gas Tunnel Plasma Spraying
DC.creator	Morks, Magdi F.
DC.creator	Kobayashi, Akira
DC.publisher	大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2007-07
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/11025
DC.subject	Gas Tunnel Plasma
	HA/ZrO₂
	Microstructure
	Hardness
	Abrasive Wear
	Adhesion
DCTERMS.abstract	The gas tunnel plasma spraying method was employed to deposit HA/ZrO₂ composite coatings on SUS 304 substrate in an atmospheric chamber. The design of the plasma torch allows for the external and internal feeding of the sprayed powder. Pure HA powder was fed externally and ZrO₂ powder was fed internally. The feeding rate was controlled to deposit HA/ZrO₂ coatings with different zirconia contents. Two sprayed coatings with different zirconia contents were obtained. The influence of ZrO₂ and its volume fraction on the microstructure and mechanical properties of HA/ZrO₂ composite coatings was investigated. A comparison between the microstructure and mechanical properties of pure HA and HA/ZrO₂ composite coatings was made. Scanning electron micrographs of the coatings cross-sections showed good adhesion between the coatings and the substrate and also the dense structure of the coatings. The presence of ZrO₂ improved the hardness and abrasive wear resistance of the composite coatings compared with the pure HA coatings.
citation_title	Microstructure and Mechanical Properties of HA/ZrO2 Coatings by Gas Tunnel Plasma Spraying
citation_author	Morks, Magdi F.
citation_author	Kobayashi, Akira
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2007-07
citation_journal_title	Transactions of JWRI
citation_volume	36
citation_issue	1
citation_firstpage	47
citation_lastpage	51
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/11025
citation_keywords	Gas Tunnel Plasma
	HA/ZrO₂
	Microstructure
	Hardness
	Abrasive Wear
	Adhesion

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