摘要
用正电子湮没技术、X射线衍射线型宽化效应和扫描电镜等手段研究了不同煅烧条件下CaO的活性及其变化规律。结果表明,快速煅烧条件下的新生态CaO不仅晶粒尺寸小、缺陷浓度高,而且晶粒生长快、晶体缺陷浓度随煅烧时间延长递减迅速。
The activity and fluctuation characteristics of CaO calcined under different calcining conditions have been studied by using the techniques of positron annihilation, X-ray line-broadening, and SEM. Experiments show that the newdecomposed CaO, under rapid calcining condition, not only has a higher concentration of defects, smaller crystal sizes but also a higher rate of crystal growth. The concentration of defects decreases rapidly with the increase of calcining time.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1991年第6期506-512,共7页
Journal of The Chinese Ceramic Society
关键词
氧化钙
活性
正电子湮没
快速煅烧
calcium oxide
activity
positron annihilation
quick calcining
