Williams T R, Winchell P G, Phillips R W
J Dent Res. 1978 Apr;57(4):583-91. doi: 10.1177/00220345780570040801.
In a Be-bearing Ni alloy porcelainized without preoxidation, Be diffuses to the interface, oxidizes, and oxygen is supplied by the atmosphere at the porcelain surface and by reduction of SiO2 at the porcelain-alloy interface. On the alloy side of the interface, pits develop locally and near them Ni and Cr oxidize. In the oxide, Ni and Si are reduced to form nickel silicides. Preoxidation of the alloy prevents Be oxidation and Si reduction for several hours of porcelainization.
在未经预氧化的含铍镍合金上进行瓷化处理时，铍扩散至界面并发生氧化，氧由瓷表面的大气以及瓷 - 合金界面处二氧化硅的还原作用提供。在界面的合金一侧，局部会形成凹坑，凹坑附近的镍和铬发生氧化。在氧化物中，镍和硅被还原形成硅化镍。合金的预氧化可在数小时的瓷化过程中防止铍氧化和硅还原。
