Cation diffusion at the interface of composite YAG/Re: LuAG (Re = Nd or Yb) transparent ceramics

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• 作者：Chaoyang Ma^a ; Fei Tang^a ; Jiangfeng Zhu^b ; Zicheng Wen^a ; Yang Yu^b ; Ke Wang^b ; Miaomiao Du^a ; Jiantao Zhang^a ; Jiaqi Long^a ; Xuanyi Yuan^a ; Wang Guo^a ; Yongge Cao^a ; ^{caoyongge@ruc.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Cation diffusion ; YAG/LuAG ; Laser ceramics ; Tape casting
• 刊名：Journal of the European Ceramic Society
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：36
• 期：10
• 页码：2555-2564
• 全文大小：4491 K

文摘

Composite structures of YAG/1 at% Nd-doped LuAG/YAG, YAG/1 at% Nd-doped LuAG and YAG/5 at% Yb-doped LuAG transparent ceramics were successfully fabricated by non-aqueous tape-casting method and vacuum sintering technology. Cation (Y³⁺, Lu³⁺, Nd³⁺, Yb³⁺) diffusion behavior across the contact boundaries between ytterbium (Yb) or neodymium (Nd) doped lutetium aluminum garnet (LuAG) and un-doped yttrium aluminum garnet (YAG) was studied by the electron probe X-ray micro-analysis (EPMA). The diffusion concentration profile curves were well modeled by Harrison type B kinetics. Curves of concentration vs depth were well fitted by Fick’s second low and the log of the average concentration varies as 6/5 power of penetration depth in the diffusion range was demonstrated. Meanwhile, the bulk diffusion coefficient and grain boundary diffusion coefficient were calculated. For YAG/Nd:LuAG transparent ceramic, under an 808 nm diode laser pumping, the 1064 nm continuous wave (C.W.) laser output beam with good quality was achieved.