Journal
CERAMICS INTERNATIONAL
Volume 44, Issue 7, Pages 8672-8678Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.02.096
Keywords
(Y, Gd)AG: Ce ceramic solid solutions; Microstructure evolution; Optical quality; White light LEDs
Categories
Funding
- National Natural Science Foundation of China [51402133, 61775088, 61603160]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), Guangdong Provincial Key Laboratory [2014B030301014]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYZZ16_0231, KYCX17_1651]
- Special Project for Technology Innovation of Xuzhou City [KC16GZ014, KC16HQ236, KC16HQ237]
- Jiangsu Normal University [15XLR033]
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(Y, Gd)(3)Al5O12: Ce ((Y, Gd)AG: Ce) ceramic solid solutions with Gd3+ ions contents from 0 to 30 at% and Ce3+ ions content of 0.01 at% were successfully fabricated using a solid-state sintering method under vacuum. The microstructure evolution and optical quality as a function of Gd2O3 substitution in (Y, Gd)AG: Ce ceramic solid solutions were studied systematically. The as prepared ceramic solid solutions provided a dense structure (above 99.0%), with an optical transmittance of 66.7% at 1064 nm, and exhibited a white light (0.3216, 0.3437) emission. It was found that moderate amount of Gd2O3 could inhibit the grain growth while promote the densification of ceramic solid solutions, whose function was similar as sintering additive.
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