碳酸镁晶须演变过程研究(Ⅰ)  

Study on Microstructure Evolution of Magnesium Carbonate Whiskers( Ⅰ)

作　　者：闫平科[1] 薛国梁[1] 高玉娟[1] 王来贵[1] 田海山[1] 卢智强[1] 

机构地区：[1]辽宁工程技术大学矿业学院,阜新123000

出　　处：《硅酸盐通报》2014年第1期133-138,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51004064,51204091);中国博士后基金项目(2012M510831)

摘　　要：本文采用低温水溶液法分别制备出五水碳酸镁晶须晶体和三水碳酸镁晶须晶体,通过对制备产品进行加热升温,研究制备产物的物相及形貌的演变过程,发现晶体物相由无水碳酸镁向三水碳酸镁转变,同时,晶体形貌先后经历了棒状-鱼翅状-棒状的变化过程。在此基础上,进一步从晶体结构、晶体稳定性及能量角度分别分析了五水碳酸镁晶须晶体向三水碳酸镁晶须晶体演变的本质。In this paper, Lansfordite whisker and Nesquehonite whisker were synthesized by low- temperature aqueous solution method. Through temperature increase by heating the product and analysis evolution process of phase and morphology, it was found that the lansfordite whisker changed to the nesquehonite whisker and the morphology of crystal through the process from rod-like, fishbone-like to rod-like with the temperature increasing. In terms of crystal structure, stability and energy , the essence of lansfordite whisker changing to nesquehonite whisker was analysised on that basis.

关 键 词：碳酸镁 晶须 微观结构 演变 

分 类 号：O76[理学—晶体学]