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| 含二氧化锆陶瓷的热力学 | |
| 引用本文： | 李麟,黄水根,Jef Vleugels,王佩玲.含二氧化锆陶瓷的热力学[J].上海大学学报(英文版),2006,10(1):65-73. |
| 作者姓名： | 李麟 黄水根 Jef Vleugels 王佩玲 |
| 作者单位： | [1]School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China [2]Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, B-3001 Heverlee, Belgium [3]The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, P. R. China |
| 基金项目： | Project supported by Flanders-China Bilateral Project （Grant No. BIL 99/10）, and Commission of European Commtmities in the Framework of the Growth Project ＂BI0GRAD＂ （Grant No. G5RD-CT2000-00354） |
| 摘 要： | Thermodynamic assessment in the ternary systems ZrO2 -CeO2 -Y2 O3, ZrO2 -CeO2 -Ce2 03 and the limiting binaries ZrO2 -Y2 O3, ZrO2 -CeO2, CeO2 -Y2 03, ZrO2 -Ce2O3, CeO2 -Ce2O3 as well as the modeling for oxides are reviewed comprehensively. Based on the recent estimations on the YO1.5-CeO2, ZrO2-CeO2 and ZrO2 -YO1.6 systems, isothermal sections at 1273 and 1 973 K of the ternary CeO2- ZrO2-YO1.5system are calculated. In the system of ZrO2-CeO2-Ce2O3, the complex relation between the nonstoichiometry （y） in CeO2-x, the composition of the ZrO2 -CeO2 solid solution and the oxygen partial pressure （Po2 ） for different ZrO2 containing solid solutions CexZr1-xO2-x. are evaluated from 1 473 to 1 773 K. The relation between the degree of Ce^＋4 reduction to Ce.3 under different Po2 in the fluorite CeO2-xy and CexZr1-xOz-x solid solutions at different temperatures can be used as a guide in the development of functional ceramics. |
| 关 键 词： | 功能陶瓷 二氧化锆 热力学 相图 氧分压 二氧化铈 |
| 文章编号： | 1007-6417（2006）01-0065-09 |
| 收稿时间： | 2005-09-01 |
Thermodynamics of some ZrO2-containing ceramics |
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| Lin Li Ph. D.,Biest Van der Omer,Shui-gen Huang,Vleugels Jef,Pei-ling Wang.Thermodynamics of some ZrO2-containing ceramics[J].Journal of Shanghai University(English Edition),2006,10(1):65-73. | |
| Authors: | Lin Li Ph D Biest Van der Omer Shui-gen Huang Vleugels Jef Pei-ling Wang |
| Institution: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China 2. Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, B-3001 Heverlee, Belgium 3. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China;Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, B-3001 Heverlee, Belgium 4. The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, P. R. China |
| Abstract: | Thermodynamic assessment in the ternary systems ZrO_2-CeO_2-Y_2O_3,ZrO_2-CeO_2-Ce_2O_3 and the limiting binaries ZrO_2-Y_2O_3, ZrO_2-CeO_2,CeO_2-Y_2O_3, ZrO_2-Ce_2O_3, CeO_2-Ce_2O_3 as well as the modeling for oxides are reviewed comprehensively. Based on the recent estimations on the YO_ 1.5 -CeO_2, ZrO_2-CeO_2 and ZrO_2-YO_ 1.5 systems, isothermal sections at 1 273 and 1 973 K of the ternary CeO_2-ZrO_2-YO_ 1.5 system are calculated. In the system of ZrO_2-CeO_2-Ce_2O_3, the complex relation between the nonstoichiometry (y) in CeO_ 2-y , the composition of the ZrO_2-CeO_2 solid solution and the oxygen partial pressure (P_ O_2 ) for different ZrO_2 containing solid solu-tions Ce_zZr_ 1-z O_ 2-x are evaluated from 1 473 to 1 773 K. The relation between the degree of Ce +4 reduction to Ce +3 under different P_ O_2 in the fluorite CeO_ 2-y and Ce_ z Zr_ 1-z O_ 2-x solid solutions at different temperatures can be used as a guide in the development of functional ceramics. |
| Keywords: | ZrO2 Y2O3 Ce2O3 CeO2 CeO2-y Cez Zr1- z O2-x ceria reduction thermodynamics oxygen partial pressure phase diagram |
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