2003年9月
Development of casting investment preventing blackening of noble metal alloys - Part 2. Application of developed investment for type 4 gold alloy
DENTAL MATERIALS JOURNAL
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- 巻
- 22
- 号
- 3
- 開始ページ
- 321
- 終了ページ
- 327
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.4012/dmj.22.321
- 出版者・発行元
- JAPANESE SOC DENTAL MATERIALS DEVICES
The objective of this study was to evaluate the efficacy of the developed investment for the prevention of blackening of a cast Type 4 gold and to analyze the oxides on its surface in relation to the blackening of the alloy. The experimental investments were prepared using a gypsum-bonded investment in which boron (B) or aluminum (Al) was added as a reducing agent. A Type 4 gold alloy was cast into the mold made of the prepared investment. The effect of the additives was evaluated from the color difference (DeltaE*) between the as-cast surface and the polished surface of the cast specimen. B and Al were effective to prevent the blackening of a Type 4 gold alloy and the color of the as-cast surface approached that of the polished surface with increasing B and Al content. The prevention of the blackening of the gold alloy can be achieved by restraining the formation of CuO.
- リンク情報
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- DOI
- https://doi.org/10.4012/dmj.22.321
- CiNii Articles
- http://ci.nii.ac.jp/naid/110002983651
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/14620998
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000186722300010&DestApp=WOS_CPL
- ID情報
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- DOI : 10.4012/dmj.22.321
- ISSN : 0287-4547
- CiNii Articles ID : 110002983651
- PubMed ID : 14620998
- Web of Science ID : WOS:000186722300010