锆酸盐陶瓷粉的制备和性能研究
毕业论文关键词：固相法；陶瓷粉；离子掺杂
The synthetic and performance study of zirconate ceramics powder
Abstract：This article is synthesized by using high temperature solid phase method and combustion zirconate ceramic powder, and synthesis of the doping Y, Er and Ce zirconate ceramics powder. Studied the effects of reaction temperature and reaction time on product structure and different ion doping and different effects on the properties of ceramic powder. And the performance of zirconate ceramics powder X-ray diffraction (XRD), scanning electron microscope (SEM), infrared spectrum, hardness, differential thermogravimetric - analysis of heat and thermal expansion coefficient, etc. Known with Y, Er and Ce zirconate ceramics powder is pyrochlore structure, ion doping help zirconate ceramics powder sintering, makes the product porosity decreases, and structure more compact. And with the increase of temperature, increase the density of product, the product particle size increases. Doping ions can effectively improve the hardness of zirconate ceramics powder, and change the thermal expansion coefficient of zirconate ceramics powder. With Y and Er than zirconate ceramics powder without doping zirconate ceramics powder, hardness more than doubled.
Key words:solid phase method; ceramic powder;ion doping
目录
1 引言 1
1.1 陶瓷涂层的发展历程 1
1.2 陶瓷涂层的工作原理和结构 2
1.2.1陶瓷涂层的工作原理 2
1.2.2陶瓷涂层的结构 2
1.2.3陶瓷涂层的失效机理 4
1.3 陶瓷涂层的研究现状 5
1.4 陶瓷涂层的制备方法 7
1.4.1 燃烧法 7
1.4.2 沉淀法 8
1.4.3固相合成法 8
1.44 熔盐法 8
1.4.5水热合成法 8
1.4.6溶胶-凝胶法 8
1.5 课题研究内容及意义 9
1.5.1 研究内容 9
1.5.2 研究意义 9
2 实验部分 10
2.1 实验仪器及试剂 10
2.1.1 实验仪器 10
2.1.2 实验药品及规格 10
2.2 固相法合成Sm2Zr2O7及掺杂（Y、Er、Ce）的Sm2Zr2O7 11
2.2.1仪器及药品前处理 11
2.2.2 锆酸盐的制备 11
2.2.3 燃烧法合成La2Zr2O7 12
2.2.3 离子(Y、Er和Ce)掺杂的Sm2Zr2O7的制备 12
2.3 工艺条件的选择 13
2.3.1 合成温度的选择 13
2.3.2 合成时间的选择 13
2.3.2 掺杂离子的选择 13
2.4产品的表征与性能测试 13
2.3.1 XRD 测试 13
2.3.2 产品微观形貌的观察 13
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