Effect of ratios of Y/Ce on phase assemblages of SHS-ed (Ce,Y) α-sialon powders and bulk materials - Jiang, Jiu-Xin; Wang, Pei-Ling; He, Wan-Bao; Chen, Wei-Wu; Zhuang, Han-Rui; Cheng, Yi-Bing; Yan, Dong-Sheng (Materials Letters, 2004)