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Self‐Propagating High‐Temperature Synthesis of α‐SiAlON Doped by RE (RE=Eu,Pr,Ce) and Codoped by RE and Yttrium
Author(s) -
Jiang Jiuxin,
Wang Peiling,
He Wanbao,
Chen Weiwu,
Zhuang Hanrui,
Cheng Yibing,
Yan Dongsheng
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.00703.x
Subject(s) - sialon , yttrium , praseodymium , cerium , materials science , doping , europium , sintering , lanthanide , phosphor , ceramic , chemical engineering , phase (matter) , mineralogy , metallurgy , analytical chemistry (journal) , luminescence , chemistry , optoelectronics , organic chemistry , ion , engineering , oxide
Self‐propagating high‐temperature synthesis (SHS) was applied to synthesize α‐SiAlON powders doped by RE (RE = Eu,Pr,Ce) and codoped by RE and yttrium. The results showed that the weight ratio of α‐SiAlON to (α‐SiAlON +β‐SiAlON) decreased from 70%, 55%, and 25% for europium‐, praseodymium‐, and cerium‐doped α‐SiAlON compositions, respectively, and the weight percentage of α‐SiAlON phase increased to 100% for both (Eu,Y) and (Pr,Y) systems and 94% for the (Ce,Y) system, indicating SHS is a promising approach for synthesizing α‐SiAlONs stabilized by the cations that could not be incorporated into the α‐SiAlON structure by conventional sintering methods.