研究了PbO-B2Oa在不同重力条件下的分相现象,并分析了不同实验条件下试样的成分均匀性以及试样不同部位的显微结构.结果发现,玻璃发生分相后形成连续的富硼相和分散的富铅相.对于分相在高重力阶段发生的试样,顶部富铅相的尺寸远远小于试样的底部,试样顶部的含铅量远远低于试样的底部,因此该试样的成分均匀性最差,其次是在正常重力下发生分相的试样.
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