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Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys
http://hdl.handle.net/10069/23281
http://hdl.handle.net/10069/23281d1572c99-26f5-49b0-ac12-b1ccbbee0cf0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
DMJ29_330.pdf (2.0 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-07-06 | |||||
| タイトル | ||||||
| タイトル | Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Dental alloys | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Discoloration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Tarnish resistance | |||||
| 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 |
Takuma, Yasuko
× Takuma, Yasuko× Shiraishi, Takanobu× Fujita, Takeshi× Hisatsune, Kunihiro |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | This study evaluated the tarnish resistance of eight experimental Pd-free Ag-Au-Pt-Cu dental alloys in a 0.1% Na2S aqueous solution at 37°C. Color measurements of the plate samples were made using a computerized spectrophotometer before and after immersion in the test solution for up to 72 hours. Tarnish discoloration was evaluated using the color difference vector, ΔE*, in the CIELAB color space. Microstructural observation of each sample through an optical microscope revealed the matrix phase as the major constituent and second-phase small grains in the matrix phase. Selective tarnish discoloration occurred in the matrix, and fractional area of the matrix to the whole surface area was influenced by the sum of Au and Ag concentrations. The ΔE* value significantly decreased with increasing Au/(Au+Ag) atomic ratio. In conclusion, the Au/(Au+Ag) ratio in an alloy and the fractional area of the matrix were found to be primary and auxiliary factors affecting the tarnish resistance of the experimental alloys. | |||||
| 書誌情報 |
Dental Materials Journal 巻 29, 号 3, p. 330-335, 発行日 2010-06 |
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| 出版者 | ||||||
| 出版者 | The Japanese Society for Dental Materials and Devices | |||||
| 出版者別言語 | ||||||
| 値 | 日本歯科理工学会 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 02874547 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10443149 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.4012/dmj.2009-093 | |||||
| 権利 | ||||||
| 権利情報 | Copyright (c) 2010 The Japanese Society for Dental Materials and Devices | |||||
| 権利 | ||||||
| 権利情報 | Copyright (c) 2010 日本歯科理工学会 | |||||
| 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 | Dental Materials Journal, 29(3), pp.330-335; 2010 | |||||
