Two-step Surface Modification of Iron Particles for Magnetorheological Fluid

Yamanaka, Shinya; Abe, Hiroya; Naito, Makio

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タイトル	Two-step Surface Modification of Iron Particles for Magnetorheological Fluid
著者	Yamanaka, Shinya Yamanaka, Shinya
	Abe, Hiroya Abe, Hiroya
	Naito, Makio Naito, Makio
キーワード等	Magnetorheological fluid
	Magnetorheological response
	Iron nanoparticles
	Oleic acid
	Colloidal stability
	Redispersibility
抄録	We propose a two step modification of iron nanoparticles, including is pre-oxidation to grow the thin oxide layer with nanoscale roughness and subsequent fatty acid capping, for preparing colloidal magnetorheological (MR) fluids. The solid loading of the iron nanoparticles was 15 vol%, and a fatty acid of oleic acid was used as surfactant. We demonstrate the prepared MR fluid displays a good redispersibility and significant field-dependence yield stress when we add the adequate amount of oleic acid to the fluid. Additionally, dynamic measurements were performed to investigate field-induced aggregation structures.
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	42
号	2
開始ページ	29
終了ページ	31
刊行年月	2013-12
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/27398
言語	英語

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.42(2) P.29-P.31
DC.title	Two-step Surface Modification of Iron Particles for Magnetorheological Fluid
DC.creator	Yamanaka, Shinya
	Abe, Hiroya
	Naito, Makio
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	2013-12
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/27398
DC.subject	Magnetorheological fluid
	Magnetorheological response
	Iron nanoparticles
	Oleic acid
	Colloidal stability
	Redispersibility
DCTERMS.abstract	We propose a two step modification of iron nanoparticles, including is pre-oxidation to grow the thin oxide layer with nanoscale roughness and subsequent fatty acid capping, for preparing colloidal magnetorheological (MR) fluids. The solid loading of the iron nanoparticles was 15 vol%, and a fatty acid of oleic acid was used as surfactant. We demonstrate the prepared MR fluid displays a good redispersibility and significant field-dependence yield stress when we add the adequate amount of oleic acid to the fluid. Additionally, dynamic measurements were performed to investigate field-induced aggregation structures.
citation_title	Two-step Surface Modification of Iron Particles for Magnetorheological Fluid
citation_author	Yamanaka, Shinya
	Abe, Hiroya
	Naito, Makio
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2013-12
citation_journal_title	Transactions of JWRI
citation_volume	42
citation_issue	2
citation_firstpage	29
citation_lastpage	31
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/27398
citation_keywords	Magnetorheological fluid
	Magnetorheological response
	Iron nanoparticles
	Oleic acid
	Colloidal stability
	Redispersibility

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