This article introduced the usual terms of grain size, measurement and production control for high -purity barium carbonate. it also presented some measures to control grain size in the production.
介绍了高纯碳酸钡的常见粒度表述术语，评价方法与生产控制手段，为高纯碳酸钡生产中的粒径控制提供了多条途径。
The improvement of the PTC characteristics was induced by the more oxide of the grain boundary of the refiner particle size and an increase of the Barium vacancy.
在高温下，由于钡空位的增加、晶粒较细晶界较多和晶界的氧化作用等增加了材料的PTC效应。
The improvement of the PTC characteristics was induced by the more oxide of the grain boundary of the refiner particle size and an increase of the Barium vacancy.
在高温下，由于钡空位的增加、晶粒较细晶界较多和晶界的氧化作用等增加了材料的PTC效应。
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