【作者】 刘芹芹； 程晓农； 杨娟； 孙秀娟； 徐驰；

【Author】 LIU Qin-qin,CHENG Xiao-nong,YANG Juan,SUN Xiu-juan,XU Chi (School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013, China)

【机构】 江苏大学材料科学与工程学院；

【摘要】 以ZrO(NO3)2、N5H37W6O24·H2O及N6H24Mo7O24·4H2O等为原料,采用水热法制备出立方ZrW0.5Mo1.5O8。对前驱体在室温～800℃进行TG-DSC测试,采用XRD,SEM对所得样品的晶体结构及形貌进行了分析和表征。结果表明,该方法能在510℃得到单一立方相的ZrW0.5Mo1.5O8粉体形貌为六面体状,这是由于SO24-择优吸附所引起的,其在25～550℃微观和宏观热膨胀性能分别为-5.71×10-6和-4.87×10-6/K。更多还原

【Abstract】 Cubic zirconium tungstate and molydbate is synthesized by using hydrothermal method with zirconium oxynitric, ammonium tungstate and ammonium molydbate as raw materials. The precursor is tested by TG-DSC analysis. The phase structure and morphology of the resulting cubic ZrW0.5Mo1.5O8 powder are characterized by XRD and SEM experiments. The results show that pure cubic ZrW0.5Mo1.5O8 can be obtained by heating the precursor at 510℃ with hexahedron morphology, and its microscopic and macroscopic thermal expansion coefficient is -5.71×10-6 and -4.87×10-6/K, respectively.更多还原