Rare earth doping sialons

Sialons constitute an important family of materials with unique structural features and various crystal chemistries. Because of their excellent mechanical properties and high temperature stability, sialon ceramics have been developed for structural engineering applications. Since the pioneering work of Krevel et al. [18] and Xie et al. [19], the rare earth-doped sialon phosphors have received increasing attention. In particular, Ca-a-sialon Eu [50] and P-SiAlON [21] phosphors have been proved to be good downconversion phosphors for white LED combined with a blue InGaN LED chip. 

Ekstrom, T., Shen, Z.J. (1995), Temperature stability of rare earth doped cx-SiAlON ceramics , in Proc. 5thlnt. Symp. on Ceramic Materials and Components for Engines,... 

Xie RJ, Hirosaki N, Mitomo M, Suehiro T, Xu X, Tanaka H (2005) Photoluminescence of rare-earth-doped Ca-a-SiAlON phosphors composition and concentration dependence. J Am Ceram Soc 88(10) 2883-2888... 

Fig. 11.13 Crystal structure of fS-sialon. The red-dash ball represents positions of the rare-earth ions doped into the crystal...

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