Problem to be solved: to provide a ceramic composite material capable of improving the wavelength conversion efficiency by uniformly scattering primary light and wavelength converted secondary light.Solution: at least two of the oxide phases of the Y3Al5O12 phase and the Al2O3 phase have lamellar structures, and the average value of lamellar spacing in the Y3Al5O12 phase is 0.5 Mgr; m or more and 20 Mgr; m or less and the cero containing MgO is 10 ppm or more and 500 ppm or less Mick complex.The y.sub.3al5o12 phase is activated by CE, and the content of CE is 0.01 mol% or more and 5.0 mol% or less.Diagram
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机译：要解决的问题：提供一种能够通过均匀散射初级光和波长转换的次光来改善波长转换效率的陶瓷复合材料。溶液：Y3Al5O12相的至少两个氧化物相和Al 2 O 3相具有层状结构，Y3Al5O12相中的层状间距的平均值为0.5 mgR; m以上和20毫克; M以下MgO和含有MgO的CERO为10ppm以上，500ppm或更低的MICK络合物。Y.SUB.3AL5O12相通过CE激活，CE的含量为0.01mol％或更高，5.0摩尔％或更低。 。图表
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