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材料工程  2017, Vol. 45 Issue (12): 77-82    DOI: 10.11868/j.issn.1001-4381.2015.000868
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
PVP对溶胶凝胶法制备负热膨胀ZrW2O8粉体形貌及性能的影响
孙秀娟1,2, 程晓农2, 杨娟2, 刘芹芹2, 徐东2
1. 江苏大学 分析测试中心, 江苏 镇江 212013;
2. 江苏大学 材料科学与工程学院, 江苏 镇江 212013
Effect of PVP on Morphology and Property of Negative Thermal Expansion ZrW2O8 Powders by Sol-gel Method
SUN Xiu-juan1,2, CHENG Xiao-nong2, YANG Juan2, LIU Qin-qin2, XU Dong2
1. Testing and Analysis Center, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
2. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
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摘要 以PVP为添加剂,采用溶胶凝胶法制备ZrW2O8粉体,研究添加剂对粉体形貌的影响及其负热膨胀特性。对其前驱体进行热重-差热分析(TG-DSC),以X射线粉末衍射(XRD),扫描电子显微镜(SEM)对产物结构及形貌进行表征。结果表明所得粉体为单一立方α-ZrW2O8相。加入PVP后,可以有效地改变粉体的形貌,随着加入量的增大,粉体的形貌从无规则的团聚体转变为长棒状、扇形及短棒颗粒。原位X射线粉末衍射分析表明,所得ZrW2O8粉体具有良好的负热膨胀特性。
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孙秀娟
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杨娟
刘芹芹
徐东
关键词 负热膨胀溶胶凝胶法PVPZrW2O8    
Abstract:ZrW2O8 powders were prepared by sol-gel method with PVP as the additive. The effect of PVP on the morphology was studied and negative thermal expansion property of ZrW2O8 powders was also investigated. The precursor of ZrW2O8 was analysized by thermogravimetric and differential scanning calorimetry (TG-DSC). The structure and morphology of the resulting powder were characterized by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. The results show that the resulting powder is single cubic α-ZrW2O8 phase. The addition of PVP can effectively change the morphology of the powder, with the increasing amount of PVP, morphology of the particles changes from irregular aggregates to rod-like, fan-shaped and short rod particles. The results of in-situ X-ray diffraction measurement indicate that ZrW2O8 powder prepared with the addition of PVP has good negative thermal expansion property.
Key wordsnegative thermal expansion    sol-gel method    PVP    ZrW2O8
收稿日期: 2015-09-10      出版日期: 2017-12-19
中图分类号:  TB34  
通讯作者: 孙秀娟(1981-),女,博士,助理研究员,研究方向:无机材料的制备与性能,联系地址:江苏省镇江市学府路301号江苏大学分析测试中心(212013),E-mail:sunxiujuan@ujs.edu.cn     E-mail: sunxiujuan@ujs.edu.cn
引用本文:   
孙秀娟, 程晓农, 杨娟, 刘芹芹, 徐东. PVP对溶胶凝胶法制备负热膨胀ZrW2O8粉体形貌及性能的影响[J]. 材料工程, 2017, 45(12): 77-82.
SUN Xiu-juan, CHENG Xiao-nong, YANG Juan, LIU Qin-qin, XU Dong. Effect of PVP on Morphology and Property of Negative Thermal Expansion ZrW2O8 Powders by Sol-gel Method. Journal of Materials Engineering, 2017, 45(12): 77-82.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000868      或      http://jme.biam.ac.cn/CN/Y2017/V45/I12/77
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