| 掺有过渡金属氧化物的氧化铁系统陶瓷的气敏特性 |
| |
| 引用本文： | 贺蕴秋,解庆红. 掺有过渡金属氧化物的氧化铁系统陶瓷的气敏特性[J]. 无机材料学报, 1997, 12(1): 54-58 |
| |
| 作者姓名： | 贺蕴秋 解庆红 |
| |
| 作者单位： | 同济大学材料工程系; 上海200433 |
| |
| 摘 要： | 掺有过渡金属氧化物的氧化铁系统陶瓷在不同温度下烧结，如CuO－Fe2O3和ZnO-Fe2O3系统，形成α－Fe2O3和含有铁空位的尖晶石晶相.材料对还原气体具有显著的气敏性.尖晶石相和其中的铁空位浓度随组成和烧结温度而变化.文章认为材料的气敏性因铁空位而产生，并随铁空位浓度增加灵敏度上升.
|
| 关 键 词： | 气敏性 铁空位 固溶体 |
| 收稿时间： | 1995-12-11 |
| 修稿时间： | 1996-01-31 |
Gas Sensitivity of Ferric Oxide Ceramics with Transition-Metal Oxide |
| |
| HE Yunqiu,XIE Qinghong. Gas Sensitivity of Ferric Oxide Ceramics with Transition-Metal Oxide[J]. Journal of Inorganic Materials, 1997, 12(1): 54-58 |
| |
| Authors: | HE Yunqiu XIE Qinghong |
| |
| Affiliation: | Department of Materials Engineering; Tongji University Shanghai 200433 China |
| |
| Abstract: | The ferric oaide system with transition metal oxides such as CuO-Fe2O3 and ZnO-Fe2O3, were Sintered at different temperatures and formed a porous ceramic with a-Fe2O3 and spinel crystal phases. This ceramic possesses a remarked sensitivity to reductive gases. The special property is considered to relate to the ferric vacancy coccentration in a spinel phase. The ferric vacancy concentration varies with composition and heating temperature. The gas sensitivity can be improved by the increment of the ferric vacancy concentration. |
| |
| Keywords: | gas sensitivity ferric vacancy solid solution |
| 本文献已被 CNKI 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 |
