| The study on degradation of Y/sub 2/O/sub 3/-CeO/sub 2 /-partially stabilized ZrO/sub 2/ adding Al/sub 2/O/sub 3 / particles at low temperature | |
| Qiang Lin ; Baoqing Zhang ; Xuping Lin ; Jingtao Ma | |
| 2010-05-10 ; 2010-05-10 | |
| 会议名称 | Key Engineering Materials ; 3rd International Conference on High-Performance Ceramics (CICC-3) ; Shenzhen, China ; INSPEC |
| 关键词 | Experimental/ ageing alumina cerium compounds high-temperature effects solid-state phase transformations yttrium compounds zirconium compounds/ yttria-ceria partially stabilized zirconia zirconia degradation tetragonal-monoclinic phase transformation ageing Al/sub 2/O/sub 3/ particles addition water vapor Al/sub 2/O/sub 3/ particles dispersion ZrO/sub 2/ matrix aluminum hydroxide formation Al(OH)/sub 3/ formation high temperature effect 150 degC 200 degC 300 degC Y/sub 2/O/sub 3/-CeO/sub 2/-ZrO/sub 2/-Al /sub 2/O/sub 3// A6470K Solid-solid transitions A8140G Other heat and thermomechanical treatments/ temperature 4.23E+02 K temperature 4.73E+02 K temperature 5.73E+02 K/ Y2O3CeO2ZrO2Al2O3/ss Al2O3/ss Al2/ss Al/ss Ce/ss O2/ss O3/ss Y2/ss Zr/ss O/ss Y/ss |
| 中文摘要 | The tetragonal-to-monoclinic phase transformation in yttria (1.5 mol%) and ceria (4 mol%) stabilized zirconia containing 0-15 wt% Al/sub 2/O/sub 3/ during ageing in air (300 degrees C) and in water vapor (150 degrees C, 200 degrees C) is investigated in this paper. It is found that water can greatly accelerate the degradation of zirconia. A limited amount of Al/sub 2/O/sub 3/ addition can effectively suppress the degradation, however the effects are slight in water vapor at high temperatures. Al/sub 2/O/sub 3/ does not change the degradation mechanism of ZrO/sub 2/, but can prevent further continuation of degradation by the dispersion of Al/sub 2/O/sub 3 / particles in the ZrO/sub 2/ matrix and the formation of aluminum hydroxide [Al(OH)/sub 3/]. |
| 会议录出版者 | Trans Tech Publications ; Switzerland |
| 语种 | 英语 ; 英语 |
| 内容类型 | 会议论文 |
| 源URL | [http://hdl.handle.net/123456789/18771]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Qiang Lin,Baoqing Zhang,Xuping Lin,et al. The study on degradation of Y/sub 2/O/sub 3/-CeO/sub 2 /-partially stabilized ZrO/sub 2/ adding Al/sub 2/O/sub 3 / particles at low temperature[C]. 见:Key Engineering Materials, 3rd International Conference on High-Performance Ceramics (CICC-3), Shenzhen, China, INSPEC. |
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