强激光与粒子束, 2014, 26 (7): 071007, 网络出版: 2014-06-30
Nd: YAG陶瓷的烧结性能研究
Reactive sintering of polycrystalline Nd: YAG ceramics
激光介质 透明陶瓷 真空烧结 注浆成型 laser gain media transparent ceramic vacuum sintering slip casting Nd: YAG Nd: YAG
摘要
采用注浆成型和真空烧结制备了Nd: YAG激光透明陶瓷,研究了烧结温度和时间对致密化过程的影响。研究结果表明: 在1050～1300 ℃之间坯体发生明显的收缩生成YAM和YAP相; 在1300～1420 ℃,生成YAG相。随着烧结温度的增加,陶瓷中气孔含量减少,晶粒尺寸长大。在1700～1800 ℃烧结20 h能够获得完全致密的Nd: YAG陶瓷样品。
Abstract
Dense Nd: YAG transparent ceramic was obtained by slip casting and vacuum sintering. The effect of sintered temperature and dwell time on the densification and microstructure development of Nd: YAG transparent ceramics were investigated. The YAP and YAM formation appeared from 1050 ℃ up to 1300 ℃, resulting in a significant densification. YAG was obtained in the vicinity of 1400 ℃, whereas beyond 1400 ℃, no other phase was detected. The densification and grain size increased with the increasing of the sintered temperature. Pore free Nd: YAG transparent ceramic with a grain size of 5 μm to 10 μm was obtained between 1700 ℃ and 1800 ℃ sintering for 20 h.
吉祥波, 邓建国, 康彬, 胥涛, 敬畏, 余盛全. Nd: YAG陶瓷的烧结性能研究[J]. 强激光与粒子束, 2014, 26(7): 071007. Ji Xiangbo, Deng Jianguo, Kang Bin, Xu Tao, Jing Wei, Yu Shengquan. Reactive sintering of polycrystalline Nd: YAG ceramics[J]. High Power Laser and Particle Beams, 2014, 26(7): 071007.
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