透辉石玻璃中钼的溶解度及其结构和化学稳定性的研究  

Study on the Solubility,Structure and Chemical Durability of Molybdenum in Diopside Glass

作　　者：徐冲 霍冀川 张行泉[3] 霍泳霖 朱永昌 XU Chong;HUO Jichuan;ZHANG Xingquan;HUO Yonglin;ZHU Yongchang(State Key Laboratory of Environment-Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China;School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China;Analytical and Testing Center,Southwest University of Science and Technology,Mianyang 621010,China;China Building Materials Academy Co.,LTD.,Beijing 100024,China)

机构地区：[1]西南科技大学环境友好能源材料国家重点实验室,绵阳621010 [2]西南科技大学材料科学与工程学院,绵阳621010 [3]西南科技大学分析测试中心,绵阳621010 [4]中国建筑材料科学研究总院有限公司,北京100024

出　　处：《玻璃》2022年第3期7-12,共6页Glass

基　　金：四川省先进材料重大科技专项项目(2019ZDZX0023);环境友好能源材料国家重点实验室资助项目(20fksy08)。

摘　　要：在透辉石中加入不同质量百分比的Mo O_(3),用熔融淬火法制备了玻璃陶瓷,研究了Mo O _(3)的溶解度,通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)和拉曼光谱仪(Raman)表征玻璃陶瓷的物相、微观形貌和结构特征,用产品一致性测试(PCT)法评估玻璃陶瓷的化学稳定性。结果表明:透辉石玻璃中Mo O_(3)的溶解极限可达8%(质量分数),10%(质量分数)时样品中析出了圆球状Ca Mo O_(4)晶体,Mo O_(3)含量的增加增强了拉曼光谱中[Mo O _(4)]的峰,28天后,Si、Ca和Mo的归一化浸出率在10^(-7)、10^(-6)和10^(-7) g/(m^(2)·d)数量级,表明制备的玻璃陶瓷具有良好的化学稳定性。The glass ceramics with different mass percentages of Mo O_(3) added to the diopside were prepared by melt quenching process.The solubility of Mo O_(3) in diopside glass was investigated,and the phases,microstructures and structural features of the samples were studied by X-ray diffraction(XRD),scanning electron microscope(SEM)and Raman spectrometer.The chemical durability of glass ceramics was evaluated by the Product Consistency Test(PCT)method.The results show that the solubility of Mo O_(3) in diopside glass can reach 8%(mass fraction),and spherical Ca Mo O_(4) crystal phase is precipitated when the Mo O_(3) content reached to 10%(mass fraction).Meanwhile,the increase of Mo O_(3) content enhanced the[Mo O_(4)]peaks in Raman spectrum.After 28 days,LR_(S) _(i),L R_(C) _(a) and LR_(M) _(o) remains in the order of 10^(-7),10^(-6)and 10^(-7) g/(m^(2)·d),indicating that the prepared glass ceramics show excellent chemical durability.

关 键 词：透辉石 玻璃陶瓷 钼 溶解度 化学稳定性 

分 类 号：TQ171[化学工程—玻璃工业]