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热处理温度对溶胶-凝胶法制备ZrH1.8表面氧化锆膜层的影响
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内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,内蒙古工业大学 材料科学与工程学院,武汉工程大学

基金项目:

国家自然科学基金资助项目(59493300);教育部博士点基金资助项目(9800462)


The zirconia films on the surface of ZrH1.8 prepared by Sol-Gel method
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School of Materials Science and Engineering,Inner Mongolia University of Technology,School of Materials Science and Engineering,Inner Mongolia University of Technology,School of Materials Science and Engineering,Inner Mongolia University of Technology,School of Materials Science and Engineering,Inner Mongolia University of Technology,School of Materials Science and Engineering,Inner Mongolia University of Technology,Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology

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    摘要:

    本文采用溶胶凝胶法，以锆的醇盐为前驱体在氢化锆表面制备氧化锆膜层以防止氢化锆中氢析出。研究了热处理温度对氧化锆膜层的物相组成、表面和截面形貌及阻氢性能的影响。利用扫描电子显微镜(SEM)、激光共聚焦显微镜(CLSM)、X射线衍射仪(XRD)分析测试了氧化锆膜层的截面形貌、表面形貌及相结构。通过真空脱氢实验对膜层的阻氢性能进行评估。研究结果表明，热处理温度在 600℃以上时，可以在氢化锆表面获得致密并连续的氧化锆膜层；氧化锆膜层的阻氢因子PRF值随着热处理温度的升高呈现出先增大后减小的趋势，当热处理温度为600℃时获得氧化锆膜层的阻氢因子最高，为8.6；氧化锆膜层主要由四方相氧化锆T-ZrO2和单斜相氧化锆M-ZrO2组成，并以单斜相氧化锆M-ZrO2为主。

    Abstract:

    For preventing hydrogen lossing from zirconium hydride, zirconium oxide films were prepared on the surface of zirconium hydride by Sol-Gel method. Zirconium n-propoxide was precursor in reaction system. The influence of heat treatment temperature on phase composition, surface morphologies, cross-sectional morphologies and hydrogen resistance performance of zirconium oxide films were researched in this paper. The phase composition, surface morphologies and cross-sectional morphologies were characterized by X-ray diffractometer(XRD) , confocal laser scanning microscope(CLSM) and scanning election microscopy(SEM), respectively. Hydrogen resistance performance was evaluated by the experiment of vacuum dehydrogenation testing. The results showed that the continuous and dense zirconium oxide films are formed on the surface of zirconium hydride when heat treatment temperature is 600℃. The PRF values of zirconium oxide films present the trend that increase at first,then decrease with increasing of heat treatment temperature. The maximum PRF value of zirconium oxide films reach 8.6 at 600℃. The phase structure of zirconium oxide films is both tetragonal phase T-ZrO1.8 and monoclinic phase M-ZrO1.8, and the films is mainly composed of monoclinic phase M-ZrO1.8.

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闫彦同,陈伟东,范秀娟,王志刚,白宾,徐志高.热处理温度对溶胶-凝胶法制备ZrH1.8表面氧化锆膜层的影响[J].稀有金属材料与工程,2017,46(6):1723~1726.[Yan Yantong, Chen Weidong, Fan Xiujuan, Wang Zhigang, Bai Bin, Xu Zhigao. The zirconia films on the surface of ZrH1.8 prepared by Sol-Gel method[J]. Rare Metal Materials and Engineering,2017,46(6):1723~1726.]
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  • 收稿日期:2015-01-27
  • 最后修改日期:2015-02-07
  • 录用日期:2015-05-13
  • 在线发布日期: 2017-11-07

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