Sintering and laser behavior of composite YAG/Nd:YAG/YAG transparent ceramics

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• 作者：Wenbin Liu^a ; ^b ; Yanping Zeng^b ; Jiang Li^b ; Yu Shen^c ; Yong Bo^c ; Nan Zong^c ; Pengyuan Wang^c ; Yiding Xu^c ; Jialin Xu^c ; Dafu Cui^c ; Qinjun Peng^c ; Zuyan Xu^c ; Di Zhang^a ; Yubai Pan^b ; ^{ybpan@mail.sic.ac.cn}
• 关键词：Sintering ; Microstructure ; YAG ; Transparent ceramics ; Optical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2012
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：25 June, 2012
• 卷：527
• 期：Complete
• 页码：66-70
• 文件大小：1565 K

摘要

Highly transparent composite YAG/1.0 at.%Nd:YAG/YAG ceramic slab was prepared by vacuum reactive sintering method using commercial Al₂O₃, Y₂O₃ and Nd₂O₃ powders as raw materials with tetraethyl orthosilicate (TEOS) and La₂O₃ as sintering aids. By selecting the sintering aids and controlling their doping amounts, pure YAG and 1.0 at.%Nd:YAG ceramics can be well fabricated at the same sintering temperature. A fully dense composite ceramic slab with an average grain size of 鈭?0 渭m was obtained by sintering at 1750 掳C for 50 h. The in-line transmittance of the composite ceramic was >81%near the visible wavelength of 400 nm. Output power of a composite ceramic rod (脴3 mm 脳 82 mm) was 20.3 W with a pump power of 201 W, corresponding to an optical-to-optical conversion efficiency of 10.1%.