Na_2O含量对包钢稀选尾矿制备微晶玻璃析晶行为和性能的影响  

Effect of Na_2O Content on Crystallization Behavior and Properties of Glass-Ceramics Prepared by Utilizing Tailing of BISCO

作　　者：朱静[1] 赵团[2] 高占勇[2] 李保卫 李解[3] 

机构地区：[1]内蒙古科技大学数理与生物工程学院,包头014010 [2]内蒙古科技大学材料与冶金学院,包头014010 [3]内蒙古科技大学冶金与矿业研究所,包头014010

出　　处：《机械工程材料》2010年第11期27-30,共4页Materials For Mechanical Engineering

基　　金：包头市重大科技攻关项目(2004z007)

摘　　要：采用DSC、XRD、SEM等方法研究了Na2O含量对以包钢稀选尾矿为主料制备微晶玻璃析晶行为及性能的影响。结果表明:随着Na2O含量的增加,微晶玻璃的晶化温度逐渐降低;当Na2O质量分数大于6.7%时,主晶相由钙铁辉石变为霞石;当Na2O质量分数为3.6%时,微晶玻璃的抗弯强度最大为150.4 MPa,密度最大为3.4 g.cm-3。The Effect of Na2O content on crystallization behavior and properties of glass-ceramics preparing by utilizing tailing of BISCO was studied by means of DSC,XRD,SEM.The results show that with the increase of Na2O content the crystallization temperature of the glass-ceramics decreased.When the Na2O content was larger than 6.7wt% the main crystal phases changed from hedenbergite to nepheline.When the Na2O content was 3.6wt%,the maximum bending strength of the glass-ceramics was 150.4 MPa,and the maximum density was 3.4 g·cm-3.

关 键 词：NA2O 尾矿 微晶玻璃 性能 

分 类 号：TQ171[化学工程—玻璃工业]