采用高温固相熔融法在弱还原气氛下制备了Ce3＋离子掺杂的Y2O3-A12O3-SiO2（SAY）系基础玻璃,并在1250℃~1300℃热处理一定时间制备了晶相为YAG的黄色微晶玻璃。通过XRD、SEM研究了微晶玻璃的结构及相组成;激发和发射光谱分析了Ce3＋离子在玻璃及微晶玻璃不同基质中的发光特性,以及Al2O3/Y2O3摩尔比对微晶玻璃样品发光性能的影响。结果表明：基础玻璃经热处理能得到Ce-YAG微晶玻璃,晶粒大小在80~120nm范围内,晶粒发育良好。该微晶玻璃样品能被450nm有效激发,并在530nm处有宽带发射峰,归属于Ce3＋的5d-4f（2F2/7）。该微晶玻璃在LED照明领域中有很大的应用开发价值。Al2O3和Y2O3的摩尔含量变化对微晶玻璃发光性能有较大影响,在Al2O3/Y2O3的摩尔比为1.5时,样品的发光性能最佳。%Ce3＋ doped Y2O3-Al2O3-SiO2 （SAY） glass was synthesized by high temperature solid-state melting method under weak reducing atmosphere, and yellow YAG glass-ceramic was obtained after being heat treated at 1250℃ 1300℃. By using X-ray diffractometry （XRD） and scanning electron microscopy （SEM）, we studied the crystalline phase structure of the glass-ceramic. The luminescence characteristics of Ce3＋ ion in different matrixes of glass and glass-ceramic samples were studied by the excitation and emission spectroscopy, and we also studied the influence of Al2O3/Y2 O3 on the luminescence properties. The results show that we can obtain the Ce-YAG glas-ceramics after heat treating the as-made glasses, and the grain size of the Ce-YAG phase is between 80-120nm with well-developed grains. The glass ceramics can emit yellow fluorescence centered at 530nm with a broad emission spectrum under the excitation at 450nm, which attributes to the energy transfer 5d-4f （2 F2/7 ） of the Ce^3＋ , and indicates that it has a great value in application and development in the field of LED lighting. The molar ratio of Al2O3/Y2O3 has a great effect on the luminescence properties of the as-made glass-ceramics. When the A12O3/Y2O3 equals to1.5, the sample has the excellent luminescent performance.
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