通过固相反应结合真空烧结制备了(CexLu1-x)3Al5O12(Ce:LuAG,x=0.0005,0.001,0.002,0.003,0.004)透明陶瓷.厚度为1.0 mm的Ce:LuAG陶瓷在500～800 nm波长范围内的直线透过率大于75％.研究了不同浓度Ce:LuAG陶瓷在454 nm蓝光LED激发下的吸收和发射特性,获得了可调的相关色温(5653～7433 K).所制备的Ce:LuAG陶瓷具有优异的热性能和发光性能,在225℃下的PL强度较室温仅下降7％,0.1％Ce:LuAG陶瓷在蓝光LED激发下的发光效率达到179 lm/W.进一步研究了不同厚度Ce:LuAG陶瓷的发光饱和性能,1 mm厚的0.1％Ce:LuAG陶瓷在功率密度为24.6 W/mm2的蓝光LD激发下获得了3646 lm的高光通量,同时没有出现发光饱和现象.研究结果表明,Ce:LuAG透明陶瓷具有高发光效率和热稳定性,适合用于大功率固态照明.“,”A series of (CexLu1-x)3Al5O12(Ce:LuAG, x=0. 0005, 0. 001, 0. 002, 0. 003, 0. 004) transparent ceramics were prepared via high-temperature reactive sintering under vacuum. The in-line transmittances of these transparent ceramics are higher than 75％ at 500 -800 nm with a thickness of 1. 0 mm. Absorption and emission properties of ceramics with different Ce3+ concentrations excited by 454 nm blue LED were investigated. An adjusta-ble correlated color temperature(CCT)(5653-7433 K) was obtained. The as-prepared ceramics show remarkably superior thermal and luminescent properties:a low thermal quenching(7％ drop at 225℃), and a high luminous ef-ficacy of 179 lm/W were obtained in the 0. 1％Ce:LuAG ceramics(1. 0 mm thick) coupled with commercial blue In-GaN LED chips, which also shows increasing emission intensity with increasing input power(up to 3. 6 W). A high flux of 3646 lm was obtained with robust Ce:LuAG ceramics irradiated with a high laser power density of 24. 6 W/mm2 . Obviously, the fabricated transparent Ce:LuAG ceramics are quite prospective as a highly efficient and ther-mally robust green-yellow color converter for high-power solid-state lighting( SSL) application.