不同条件对硫酸钙结晶影响的实验研究  

Study on the influence of calcium sulfate crystallization under the different conditions

作　　者：赵岩岩[1] 杨晓庆[1] 黄卡玛[1] 华伟[1] 

机构地区：[1]四川大学电子信息学院,四川成都610064

出　　处：《化学研究与应用》2006年第11期1322-1325,共4页Chemical Research and Application

基　　金：国家杰出青年科学基金项目资助(60125102)

摘　　要：Static electric field,static magnetic field and microwave field can be used to control the growth and structures of crystals and have been widely used in material industry.The crystallization of calcium sulfate was studied under four different experimental conditions:water bath heating,microwave heating,water bath heating with electric field and water bath heating with magnetic field.Through special temperature-control methods,the same temperature rising has been achieved in both microwave heating and traditional water bath.The structures and properties of calcium sulphate crystals were investigated by SEM,while the apearance was investigated by XRD.The analyses show that the structure of calcium sulfate crystal may vary with different physical conditions.However,its structure under microwave heating differs most from others.Meanwhile,the ingredients by microwave heating are appreciably different from those by tradition heating.There is a little semi-hydrated calcium sulfate produced under microwave heating,which can only be obtained at a much higher temperature.These studies provide a reference for controlling and changing the structure and properties of crystals.Static electric field, static magnetic field and microwave field can be used to control the growth and structures of crystals and have been widely used in material industry. The crystallization of calcium sulfate was studied under four different experimental conditions： water bath heating, microwave heating, water bath heating with electric field and water bath heating with magnetic field. Through special temperature - control methods, the same temperature rising has been achieved in both microwave heating and traditional water bath. The structures and properties of calcium sulphate crystals were investigated by SEM, while the apearance was investigated by XRD. The analyses show that the structure of calcium sulfate crystal may vary with different physical conditions. However, its structure under microwave heating differs most from others. Meanwhile, the ingredients by microwave heating are appreciably different from those by tradition heating. There is a little semi - hydrated calcium sulfate produced under microwave heating, which can only be obtained at a much higher temperature. These studies provide a reference for controlling and changing the structure and properties of crystals.

关 键 词：微波加热 水浴加热 电场 磁场 硫酸钙晶体 

分 类 号：O614.231[理学—无机化学]