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TM3+:Al2O3(TM=Cr,Ti)透明陶瓷的掺杂问题以及制备Cr4+:Al2O3和高浓度Ti3+:Al2O3激光陶瓷的可行性。
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 TM^3＋ （TM=Cr,Ti） in Al2O3 transparent ceramics is investigated and the fabrication of high concentration Cr^4＋：Al2O3 and Ti^3＋AL2O3 laser ceramics is also discussed.
出处
《激光与光电子学进展》
CSCD
北大核心
2006年第11期20-27,共8页
Laser & Optoelectronics Progress
关键词
激光陶瓷
缺陷
光散射中心
晶界
laser ceramics
defects
optical scattering canter crystal boundary
