| 摘要 |
PROBLEM TO BE SOLVED: To provide an alloy for dental use exhibiting high stability when the alloy is used together with low fusing ceramic. SOLUTION: This alloy for dental use of a high gold content for a metal fusing ceramic technique having excellent stability not only after the fusing of the conventional ceramic having extremely good mechanical properties, in particular, having a high fusing temperature but also after the fusing of ceramic having a low fusing temperature and a medium thermal expansion coefficient is composed of, by weight, 80.0 to 86.0% gold, 7.1 to 13.0% platinum and 0.1 to 8% palladium, 0.1 to 1.2% silver and 0.7 to 3.5% zinc as first optional elements, at least one kind selected from the groups consisting of iron, iridium, ruthenium, rodium, tantalum, manganese, rhenium and niobium by 0 to 1.0% in total as second optional elements, at least one kind selected from the groups consisting of tin, indium and gallium by 0 to 3.5% in total as third elements and 0 to 0.5% copper as a fourth optional element.
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