ρ-Al_2O_3水化动力学的研究

KINETIC STUDY ON HYDRATION OF ρ -Al 2O 3

通过对ρ－Ａｌ２Ｏ３在不同温度、不同条件下的水化所增加的质量，利用红外光谱、Ｘ射线衍射及差热分析等，对ρ－Ａｌ２Ｏ３的水化动力学进行了研究．结果表明，ρ－Ａｌ２Ｏ３是一种原子排列有序性很差，电价不平衡的非晶态物质，并且它的水化是由扩散过程控制的．

ρ -Al 2O 3 kinetics in hydration was studied through the increase of mass in hydration for different temperatures and periods, by means of infra-red spectrograph, X -ray diffraction and DTA, etc. Results show that atomic arrangement of Al 2O 3 is the worst in order; ρ -Al 2O 3 is uncrystal and unbalanced in valence and hydration of ρ -Al 2O 3 is a controlled diffusion process.