不同Ce含量改性对锆酸镧热物理性能的影响

来源 :第十八届全国高技术陶瓷学术年会 | 被引量 : 0次 | 上传用户：nobodypan

【摘要】

：

制备了不同含量Ce改性的La2Zr2O7粉末,采用化学成分分析、扫描电镜、X射线衍射、透射电镜等方法测试了粉末成分、相结构、纳米晶粒度、高分辨相、晶格常数等.采用热膨胀系数测试仪测试了粉末压成条状后的热膨胀系数,测试了材料的高温热导率.对粉末进行不同温度的热处理,研究了粉末的高温相结构稳定性.结果表明:随着Ce含量的增加,铈锆酸镧稳定的相结构由烧绿石转变为萤石结构,品格常数增加.随着Ce的添加,热

【作者】

：

吴琼张鑫彭浩然冀晓鹃沈婕任先京

【机构】

：

北京矿冶研究总院,北京,100044;北京市工业部件表面强化与修复工程技术研究中心,北京,102206

【出处】

：

第十八届全国高技术陶瓷学术年会

【发表日期】

：

2014年4期

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不同Ce含量改性对锆酸镧热物理性能的影响

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