Microporosity in thermite weld joint consiste of blow hole and shrinkage cavities. 氧或硅含量过高形成氧化物或硅酸盐;
Result is microporosity, second-phase precipitation and inclusions of intermetallic or nonmetallic compounds. 结果导致微孔、再生相沉淀和金属和非金属成分混杂。
Formation mechanism of microporosity is the results of interaction between thermodynamics and solidification mechanism. 微孔不同的组织形态是热力学和凝固机理交互作用的结果。
By means of using a special aerated technology of micropore-making and stabilizing with compressed air to get high microporosity,and fine,uniform-d... 介绍了空压制泡、稳泡加气工艺,微孔轻质板材的性能,阐述了铁铝酸盐水泥的特性及其对板材生产工艺和产品性能的影响。
In addition, several analytical methods frequently used for the calculation of surface area, pore diameter and microporosity have also been introduced. 本文针对气体吸脱附分析技术之原理与测量方式进行介绍，另外亦阐明几种常用以计算孔面积、孔径大小与微孔量等孔洞特性之数据分析方法。
The weathering of soft rock was systimatically analyzed through measuring its microsturcture, microporosity, macrofissure, and the physico chemical properties. 通过对软岩风化前后微结构、微孔隙及宏观裂隙和宏观物理力学参数的测试对比，系统地研究了软岩风化的微观和宏观效应。
