Preparation of Sc2Mo3O12 and Characterization of its Negative Thermal Expansion Property

摘要：

　　Negative thermal expansion (NTE) material Sc2Mo3O12 was prepared by solid-state method.The phase structure, morphology and the thermal stability of the obtained products were examined by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric-differential thermal analysis (TG-DSC), respectively.To study its negative thermal expansion property, two methods were utilized.One is based on the in-situ XRD results and the thermal expansion coefficient (CTE) was calculated by the cell parameters obtained at different temperatures.Another is based on the thermo-mechanical analysis (TMA) and the CTE was calculated by the length of Sc2Mo3O12 bar at different temperatures.The differences between these two methods were also discussed.

关键词： Sc2Mo3O12 Negative thermal expansion Cell parameter Thermo-mechanical analysis

作者: LI Jun CHENG Xiaonong ZHU Junjun

作者单位: School of Materials Science and Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 181-184

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）