| 铈在钙钛锆石固溶体中的固溶量 |
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| 引用本文： | 提学超,宋功保,李伟民.铈在钙钛锆石固溶体中的固溶量[J].武汉理工大学学报,2012,34(3):9-14. |
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| 作者姓名： | 提学超 宋功保 李伟民 |
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| 作者单位： | 西南科技大学四川省非金属复合与功能材料重点实验室,绵阳,621010 |
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| 基金项目： | 国家“863”项目(2009AA050703) |
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| 摘 要： | 以CaCO3、TiO2、ZrO2和CeO2粉体为原料,通过高温固相反应合成钙钛锆石固溶体,借助X射线衍射(XRD)、背散射二次电子像(BSE)和能谱(EDS)分析手段,研究铈在钙钛锆石固溶体中的固溶情况。研究结果表明,Ce4+取代Zr4+时,Ce4+固溶在CaZr1-xCexTi2O7固溶体中,其最大固溶量为10.84%;Ce4+取代Ca2+时,Ce4+固溶在Ca1-2 xCexZrTi2O7固溶体中,其最大固溶量为8.87%;掺Ce钙钛锆石固溶体的较佳合成温度为1 300℃。
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| 关 键 词： | 钙钛锆石 铈 固溶体 固溶量 |
Solid-soluted Content of Cerium in Solid Solution of Zirconolite |
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| TI Xue-chao
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SONG Gong-bao
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LI Wei-min.Solid-soluted Content of Cerium in Solid Solution of Zirconolite[J].Journal of Wuhan University of Technology,2012,34(3):9-14. |
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| Authors: | TI Xue-chao SONG Gong-bao LI Wei-min |
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| Affiliation: | (Sichuan Province State Key Laboratory of Nonmetal Composite and Functional Materials, Southwest University of Science and Technology,Mianyang 621010,China) |
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| Abstract: | The zirconolite solid solution was synthesized by solid-state method,with calcium carbonate,titanium dioxide,zirconium dioxide and cerium dioxide as raw materials.The solid-soluted content of cerium in zirconolite was researched by means of X-ray diffraction(XRD),backscattering scanning electron microscopy(BSE) and energy dispersive spectroscopy(EDS).The results indicate that when Ce4+ substituting into Zr4+ sites,Ce4+could be well solidified to CaZr1-xCex Ti2O7,and the solid-soluted content is approximately 10.84%.When Ce4+ incorporating into Ca2+ sites,Ce4+could be solidified to Ca1-2xCexZrTi2O7,and the solid-soluted content is approximately 8.87%.The appropriate synthesis ternperature of Ce-doped zirconolite solid solution is 1 300 ℃. |
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| Keywords: | zirconolite cerium solid solution solid-soluted content |
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