Corrosion Resistance of the Pt-Fe-Nb Magnets for Dental-casting.
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- HAOKA Katsunori
- Fixed Prosthodontics, Oral Rehabilitation and Materials Science Tohoku University Graduate School of Dentistry
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- KANNO Taro
- Fixed Prosthodontics, Oral Rehabilitation and Materials Science Tohoku University Graduate School of Dentistry
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- TAKADA Yukyo
- Dental Biomaterials, Oral Rehabilitation and Materials Science Tohoku University Graduate School of Dentistry
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- KIMURA Kohei
- Fixed Prosthodontics, Oral Rehabilitation and Materials Science Tohoku University Graduate School of Dentistry
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- OKUNO Osamu
- Dental Biomaterials, Oral Rehabilitation and Materials Science Tohoku University Graduate School of Dentistry
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抄録
Magnetic attachments have been used in clinical dental practice, but there is some difficulties associated with removable bridges. One possible solution is to make whole bridges of Pt-Fe magnet alloys and its abutment out of magnetic stainless steel by casting. In terms of castability and magnetic properties, the promising composition of the Pt-Fe-Nb magnet alloy is Pt-30.0 mass% Fe-0.6 mass% Nb and Pt-30.0 mass% Fe-0.5 mass% Nb-0.03 mass%Si. In the present study, the corrosion resistance of these alloys was investigated based on the elusion test, electrochemical behavior and surface characterization by EPMA analysis. The released elements from the Pt-Fe-Nb magnets were mainly Fe ions in quantities similar to that of stainless steel for biomedical use, and the Pt-Fe-Nb magnet alloy, the Pt-Fe-Nb-Si magnet alloy and platinum resembled each other in electrochemical behavior. The present findings suggest, that the Pt-Fe-Nb magnet alloy provides excellent corrosion resistance and has important clinical dental applications.
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 19 (3), 270-282, 2000
一般社団法人 日本歯科理工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204716482048
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- NII論文ID
- 110002983545
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- NII書誌ID
- AA10443149
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- COI
- 1:CAS:528:DC%2BD3cXoslWjurg%3D
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- ISSN
- 18811361
- 02874547
- http://id.crossref.org/issn/02874547
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- PubMed
- 11218847
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- NDL-Digital
- CiNii Articles
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- 使用不可