Sintering of GGAG:Ce3 , xY(3 ) transparent ceramics in oxygen atmosphere
Sintering of GGAG:Ce3 , xY(3 ) transparent ceramics in oxygen atmosphere
复制标题
GGAG:Ce3 , xY(3 )透明陶瓷在氧气气氛中的烧结
DOI：
10.1016/j.ceramint.2017.08.025
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发表时间：
2017
影响因子：
5.2
通讯作者：
Ci Meng Meng
中科院分区：
文献类型：
--
作者：
Zhang Ji Yun;Luo Zhao Hua;Jiang Hao Chuan;Jiang Jun;Gui Zhen Zhen;Chen Chun Hua;Liu Yong Fu;Liu Shuang;Ci Meng Meng
铈掺杂的钆镓铝石榴石陶瓷（GGAG：Ce）由于其优异的物理化学性能，在医学成像、大功率WLED和其他高能辐射探测等方面具有广阔的应用前景。用钇部分取代钆可以进一步改善某些光学和闪烁特性。本工作的目的是研究Y3+对GGAG陶瓷烧结的影响。研究了薄膜的光学透过率、微观结构和晶粒生长动力学。研究表明，Y ~（3+）离子的掺杂使晶粒生长的主要烧结机制由固相传质转变为液相传质，从而降低了样品的活化能。
Cerium doped gadolinium gallium aluminum garnet ceramics (GGAG:Ce) have promising applications such as medical imaging, high power WLEDs and other high energy radiation detection due to their excellent and unique combination of chemical and physical properties. Partial substitution of gadolinium with yttrium can improve some of the optical and scintillation properties even further. The goal of this work is to research the effect of Y3+to the sintering of GGAG ceramics. The optical transmittance, micro-structure and grain growth kinetics have been investigated. This research indicates that the doping of Y3+ion would transfer the main sintering mechanism for grain growth from solid state mass transport to liquid phase mass transport, thereby reducing the activation energy of the sample.