Patent ID: 9024519
Filing Date: 2015-05-05
Classification: C09K,H01L,H05B,Y10T

Abstract:
1. An α-SiAlON represented by the general formula: (M) x (Eu) y (Si) 12-(m+n) (Al) m+n (O) n (N) 16-n (wherein M denotes one or more elements including at least Ca, selected from the group consisting of Li, Mg, Ca, Y and lanthanide elements (except for La and Ce)), wherein a 50% mean area diameter of primary particles of the α-SiAlON is 5 μm or more, and wherein a D50 particle diameter (50% mean volume diameter) of secondary particles of the α-SiAlON is 13 μm or more and 30 μm or less.