Influence of Raw Materials on the Carbothermal Synthesis of Single-Phase Aluminum Oxynitride Powder
Aluminum oxynitride powders were synthesized by carbothermal reduction,using nano-sized alpha-alumina,gamma-alumina and carbon as raw materials.Effects of the weight percentages of alpha-alumina in alumina (R) and synthesizing temperatures (T) on the preparation of single-phase AlON powders have been studied.The results showed that proper R can reduce the shrinkage and increase the formation rate of AION phase,but a high R will reduce the formation rate of AION phase,because the activity of alpha-alumina was lower than that of gamma-alumina.Single-phase AION powder with excellent properties can be obtained under the condition of R=0.15,T=1700℃.Moreover,this single-phase AlON powder was well-dispersed with an average size of about 2 μm.
Carbothermal AION powder
Haiping Wang Tiecheng Lu Dengxue Wu Wei Pang Jianqi Qi JiCheng Zhou Jinsong Wen Zimeng Cheng Ya Wen Zhijun Liao
Department of Physics & Key Laboratory for Radiation Physics and Technology of Ministry of Education Department of Physics & Key Laboratory for Radiation Physics and Technology of Ministry of Education
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
438-440
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）