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ハイドロキシアパタイト焼結体の37℃蒸留水中での疲労パラメータと下限界応力拡大係数
https://asahi-u.repo.nii.ac.jp/records/170
https://asahi-u.repo.nii.ac.jp/records/170c5658ca2-e18e-4898-89dc-9100e6f214b0
名前 / ファイル | ライセンス | アクション |
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ippan36_2942_2010 (767.6 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2014-01-22 | |||||
タイトル | ||||||
タイトル | ハイドロキシアパタイト焼結体の37℃蒸留水中での疲労パラメータと下限界応力拡大係数 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Stress Corrosion Susceptibility Coefficient and Lower Threshold Stress Intensity Factor of Sintered Hydroxyapatite Ceramics in 37℃ Distilled Water | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
著者 |
若松, 宣一
× 若松, 宣一× 土井, 豊 |
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著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 4240 | |||||
姓名 | WAKAMATSU, NOBUKAZU | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 3788 | |||||
姓名 | Doi, Yutaka | |||||
所属 | ||||||
値 | 朝日大学歯学部数学 Mathematics, Asahi University School of Dentistry |
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所属 | ||||||
値 | 朝日大学歯学部口腔機能修復学講座歯科理工学分野 Department of Dental Materials Science, Division of Oral Functional Science and Rehabilitation, Asahi University School of Dentistry |
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書誌情報 |
朝日大学一般教育紀要 en : Journal of liberal arts and science, Asahi University 巻 36, p. 29-42, 発行日 2011-01-31 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 37℃蒸留水中でのハイドロキシアパタイト(Hydroxyapatite : HAP)焼結体の疲労パラメータと下限界応力拡大係数をPost-Indentation 法を用いて測定した。緻密なHAP 焼結体表面にビッカース圧子を圧入し、圧痕端から発生するMedian / Radial crack のSbucritical crackgrowth(SCG)挙動を測定した。その結果、37℃蒸留水中でのHAP 焼結体の疲労パラメータは、わずかに圧子圧入荷重依存性を示すものの、12.5〜19.0の範囲であり、動疲労試験から求められた疲労パラメータと良い一致を示した。また、測定したSCG 挙動からき裂先端の応力拡大係数KI とき裂の成長速度V の関係を求めた。その結果、相対応力拡大係数で0.25K_IC から0.3K_IC の範囲に37℃蒸留水中でのHAP 焼結体の下限界応力拡大係数K_Ith が存在した。 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Stress corrosion susceptibility coefficient(fatigue parameter)and lower threshold stress intensity factor of sintered hydroxyapatite(HAP)ceramics in 37℃ distilled water were measured by Post-indentaion method. A Vickers indenter was loaded in dense HAP ceramics surface, and subcritical crack growth(SCG)behavior of Median/Radial cracks developed from the impression was measured. The fatigue parameter of the sintered HAP ceramics in 37℃ distilled water ranged from 12.5 to 19.0, and showed a good agreement with those measured by dynamic fatigue tests, though the fatigue parameter slightly showed a dependency of indentation loads. The relation between the stress intensity factor and the crack growth rate of the Median/Radial cracks was evaluated from the measured SCG behavior. As a results, it was found that the lower threshold stress intensity factor, KIth, of the sintered HAP ceramics in 37℃ distilled water existed within the range from 0.25KIC to 0.3KIC. | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10469472 | |||||
論文ID(NAID) | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 110008425137 | |||||
フォーマット | ||||||
値 | application/pdf | |||||
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 |