| 摘要 |
The present invention is a precious metal-based amorphous alloy having a Pt-Cu-P based structure including in atomic %: 50<=Pt<=75%, 5<=Cu<=35%, and 15<=P<=25% and is a precious metal-based amorphous alloy having a Pt-Pd-Cu-P based structure including in atomic %: 5<=Pt<=70%, 5<=Pd<=50%, 5<=Cu<=50%, and 5<=P<=30%. Preferably, cooling rates for manufacturing the alloys having these compositions are 10-1 to 102° C./sec. for the Pt-Cu-P based structure and 101 to 102° C./sec. for the Pt-Pd-Cu-P based structure.
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