| 激光陶瓷中的缺陷(二) |
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| 引用本文： | 冯锡淇.激光陶瓷中的缺陷(二)[J].激光与光电子学进展,2006,43(12):19-28. |
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| 作者姓名： | 冯锡淇 |
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| 作者单位： | 中国科学院上海硅酸盐所,高性能陶瓷和超微结构国家重点实验室,上海,200050 |
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| 基金项目： | 致谢：本文得到潘裕柏博士、林奇生博士、李伟峰博士和李江博士的帮助,谨致谢忱! |
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| 摘 要： | 激光陶瓷中的各类缺陷，包括晶界、微气孔、杂质、非主晶相、表面缺陷和色心等，构成了激光陶瓷中主要的光散射和吸收中心，并对材料的热学和力学性质产生影响。讨论了各类缺陷的特点、形成机制和抑制方法。此外，还探讨了TM^3＋：Al2O3（TM=Cr，Ti）透明陶瓷的掺杂问题以及制备Cr^4＋：Al2O3和高浓度Ti^3＋：Al2O3激光陶瓷的可行性。
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| 关 键 词： | 激光陶瓷 缺陷 光散射中心 晶界 |
| 收稿时间： | 2006-06-08 |
| 修稿时间： | 2006-06-08 |
Defects in Laser Ceramics |
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| Feng Xiqi.Defects in Laser Ceramics[J].Laser & Optoelectronics Progress,2006,43(12):19-28. |
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| Authors: | Feng Xiqi |
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| Affiliation: | State Key Laboratory of High Performance Ceramics and Superfine Mierostructure, Shanghai Institute of Ceramics, the Chinese Academy of Sciences, Shanghai 200050 |
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| Abstract: | The properties, formation mechanisms and methods for inhibiting the formation of defects, such as the crystal boundary, micro-pore, minor phase, impurity, surface defects and color centers, are reviewed. The defects create optical scattering and absorption centers in laser ceramics, and also exert an influence on the thermal and mechanical properties of the materials. In addition, the doping of TM3 (TM=Cr, Ti) in Al2O3 transparent ceramics is investigated and the fabrication of high concentration Cr4 :Al2O3 and Ti3 :Al2O3 laser ceramics is also discussed. |
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| Keywords: | laser ceramics defects optical scattering center crystal boundary |
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