Influence of sintering temperature on phase composition of βSiAlON/ZrN/Al2O3 composite materials

摘要：

According to the relational thermodynamic data,a phase diagram of Al2O3-ZrSiO4-C-N2 system was presented. Then,by using fused corundum,alumina micro powder,zircon and carbon black as raw materials,βSiA10N/ZrN/Al2O3 composite materials were prepared by nitridation reaction sintering process. The influence of sintering temperature on phase composition of the synthesized composite materials was investigated by X-ray powder diffraction,and the formation process of the composite materials was also analyzed in detail. The results indicated that the βSiAlON/ZrN/Al2O3 composite materials could be prepared at 1773 K by nitridation reaction sintering process. The formation process of the composite materials included the decomposition of zircon,the formation of Si2N2O and si3N4,the formation of O-SiAlON and p-SiA10N as well as the nitridation process of ZrO2.

关键词： composite materials phase composition nitridation reaction sintering process thermodynamic analysis

作者: MA Beiyue ZHU Qiang SUN Yong YU Jingkun WANG Jingxin

作者单位: School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China Beijing General Research Institute for Non-Ferrous Metals,Beijing 100088,China

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 842-845

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）