Journal
CERAMICS INTERNATIONAL
Volume 43, Issue 17, Pages 16036-16041Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.08.025
Keywords
Co-precipitation; Transparent ceramics; GGAG; Sintering system
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Funding
- National Natural Science Foundation of China [51402317, 51672286]
- National Key Research and Development Program of China [2016YFC0104502]
- Zhejiang Provincial Natural Science Foundation of China [LY17E020011]
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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.
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