| 摘要 |
A method of forming an alloy layer on the surface of a substrate comprising forming in a vessel a molten bath comprising at least one vaporizable alloying component having a higher vapor pressure than at least one other vaporizable alloying component in said bath, forming a thin, substantially inert, liquid layer of an evaporation retarding film on the upper surface of said molten bath, said liquid layer of an evaporation retarding film having a lower or comparable vapor pressure than both said vaporizable alloying component having a higher vapor pressure and said other vaporizable alloying component on said substrate, co-vaporizing at least a portion of both said vaporizable alloying component having a higher vapor pressure and said other vaporizable alloying component whereby said evaporation retarding film retards the initial evaporation of said vaporizable alloying component having a higher vapor pressure, and forming an alloy layer comprising both said vaporizable alloying component having a higher vapor pressure and said other vaporizable alloying component on said substrate.
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