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Nanocrystalline structure and microhardness of cobalt-chromium alloys electrochemically synthesized using a metal hydroxide coprecipitation technique
http://hdl.handle.net/10069/00041539
http://hdl.handle.net/10069/000415391ab9a9c9-7e14-4900-817a-655a66908110
名前 / ファイル | ライセンス | アクション |
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MRE9_026515.pdf (2.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-05-19 | |||||
タイトル | ||||||
タイトル | Nanocrystalline structure and microhardness of cobalt-chromium alloys electrochemically synthesized using a metal hydroxide coprecipitation technique | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | coprecipitation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electrodeposition | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | cobalt | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | chromium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | nanocrystal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | microhardness | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Saeki, Ryusei
× Saeki, Ryusei× Ohgai, Takeshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The effect of glycine as a complexing agent on metal hydroxide formation, such as Co(OH)2 and Cr(OH)3, was investigated based on potential-pH diagrams and titration curves for Co2+-H2O and Cr3+−H2O systems. Using a potentiostatic electrodeposition technique, Co–Cr alloy-based composite films containing Cr2O3were synthesized from a non-suspended aqueous solution within an optimized pH range. Chromium content in the composite films was controlled up to 38.9% by adjusting the cathode potential during the alloy electrodeposition. Based on the XRD profiles and electron diffraction patterns, an amorphous-like nanocrystalline structure was observed in the composite films with high chromium content. The average crystal grain size declined due to Cr2O3 particles and hydrogen evolution during the electrodeposition process. Saturation magnetization of the composite films decreased with an increase in the chromium content. Synergistic contribution of increasing dislocation density and refining crystal grain size improved the microhardness of the composite films. The microhardness reached 624.2 kgf mm−2 and greatly exceeded that of pure cobalt (ca. 250–300 kgf mm−2). | |||||
書誌情報 |
Materials Research Express 巻 9, 号 2, p. 026515, 発行日 2022-02-18 |
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出版者 | ||||||
出版者 | IOP Publishing Ltd. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 20531591 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/2053-1591/ac5275 | |||||
権利 | ||||||
権利情報 | © 2022 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Materials Research Express, 9(2), art. no. 026515; 2022 |