Metallic and its compound powder - determination of specific surface and particle size by air permeating method 金属及其化合物粉末比表面积和粒度测定空气透过法
2.
The result showed that the mg2si powder could be synthesized by solid - state reaction at low temperature but in the system the impurity of mgo appeared easily . it is because of that the element of mg is very active and it would react with the rudimental o2 in the container and at the same time the mg2si could be oxide when the temperature descending 结果表明在该体系中，可以通过低温固相反应合成mg _ 2si化合物粉末，同时在体系中mgo是非常容易生成，这主要是因为mg在较高温度下容易挥发并与残留在反应容器内的o _ 2进行反应的结果，同时在降温过程中mg _ 2si也容易被氧化。
