| ZrO2的加入对(CeO2)0.86(SmO1.5)0.14陶瓷性能的影响 |
| |
| 引用本文： | 梁广川,刘文西,陈玉如,杜春生,邱颖. ZrO2的加入对(CeO2)0.86(SmO1.5)0.14陶瓷性能的影响[J]. 无机材料学报, 2000, 15(5): 833-838 |
| |
| 作者姓名： | 梁广川 刘文西 陈玉如 杜春生 邱颖 |
| |
| 作者单位： | 梁广川（天津大学材料学院, 天津 300130）;刘文西（天津大学材料学院, 天津 300130）;陈玉如（天津大学材料学院, 天津 300130）;杜春生（天津大学材料学院, 天津 300130）;邱颖（天津大学材料学院, 天津 300130） |
| |
| 基金项目： | 天津市自然科学基金资助项目(993803011) |
| |
| 摘 要： | 探讨了添加ＺｒＯ２和ＣｅＯ２／Ｓｍ２Ｏ３体系电导率和力学性能的影响，并用ＸＲＤ、ＳＥＭ等对材料的微观性能进行了试验分析，结果发现，添加ＺｒＯ２使材料的电导率降低，主要是因为ＺｒＯ２的固溶使得ＣｅＯ２电解质材料的晶格常数减小，活化能增加造成的；添加ＺｒＯ２可提加ＺｒＯ２促进了致密烧结，使晶界结合紧密。实验确定，外加２．５ｍｏｌ％ＺｒＯ２的ＣｅＯ２电解质具有适中的强度和电导率，可以作为电解质材料应用。
|
| 关 键 词： | 电解质 电导率 强度 二氧化铈 陶瓷 |
| 文章编号： | 1000-324X(2000)05-0833-06 |
| 收稿时间： | 1999-08-30 |
| 修稿时间： | 1999-08-30 |
Effect of Doping ZrO2 on the Properties of (CeO2)0.86(SmO1.5)0.14 Ceramics |
| |
| LIANG Guang-Chuan,LIU Wen-Xi,CHEN Yu-Ru,DU Chun-Sheng,QIU Ying. Effect of Doping ZrO2 on the Properties of (CeO2)0.86(SmO1.5)0.14 Ceramics[J]. Journal of Inorganic Materials, 2000, 15(5): 833-838 |
| |
| Authors: | LIANG Guang-Chuan LIU Wen-Xi CHEN Yu-Ru DU Chun-Sheng QIU Ying |
| |
| Affiliation: | CollegeofMaterialsScienceandEngineering;TianjinUniversity;Tianjin300072;China |
| |
| Abstract: | The effect of doping ZrO2 on the electrical conductivity and strength of CeO2/Sm2O3 ceramics was investigated, and the microstructure of samples was studied and analyzed by means of XRD and SEM. The results showed that doping ZrO2 could decrease the electrical conductivity. It was attribute to the reason that solution of ZrO2 in ceria-based electrolyte reduced the lattice constant. Doping ZrO2 increased the fracture strength and the fracture was intergranular for the reason that ZrO2 toughened the grain-boundary. Ceramics doped with ZrO2 were dense as well. (CeO2)0.86(SmO1.5)0.14 doped with 2.5mol% ZrO2 may be a potential electrolyte material used for SOFC for its proper electrical conductivity and strength. |
| |
| Keywords: | ceria electrolyte electrical conductivity strength |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
