宋杰光,李养良,王芳,李世斌,纪岗昌,许婷,熊勇锋

• 1:九江学院机械与材料工程学院九江市绿色再制造重点实验室

摘要(Abstract)：

采用共沉淀法合成的钇铝石榴石(YAG)粉体真空烧结制备多孔陶瓷,通过分析讨论表明,YAG前驱体中绝大部分吸附水蒸发以及绝大部分Al(OH)3和Y(OH)3的分解分别转变成Al2O3和Y2O3失去离子水而产生的失重出现在600℃以下完成。YAG前驱体在1100℃下煅烧后,大量YAG晶相已经形成,而且具有完整的晶型。升高煅烧温度对晶粒尺寸和晶粒形貌的影响显著,也说明YAG粉体颗粒粒径和形貌对最终煅烧温度非常敏感。采用真空烧结技术,成功制备了孔结构均匀规整,大部分微孔径处于5μm左右,且外形保持良好的YAG多孔陶瓷,综合考虑性价比,确定YAG多孔陶瓷的烧结温度为1500℃较为适宜。

关键词(KeyWords)： 钇铝石榴石粉体;多孔陶瓷;热处理温度;显微结构

Abstract:

Keywords:

基金项目(Foundation): 国家973计划子项目(5133102);; 江西省教育厅科学技术研究项目(GJJ10614);; 江西省教育科学“十一五”规划课题(09YB449);; 九江学院质量工程项目(10SFXJYS09)

作者(Author): 宋杰光,李养良,王芳,李世斌,纪岗昌,许婷,熊勇锋

DOI: 10.13289/j.issn.1009-6264.2012.05.005

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