Synthesis of Ultrafine MgAl2O4 Powders by Nitrate-Citrate Sol-Gel Combustion Process

摘要：

　　Ultrafine MgAl2O4 powders were synthesized by a nitrate-citrate sol-gel combustion process using Al(NOs)3·9H2O,Mg(NO3)2·6H2O and C6H8OT·H2O as initial materials.The result of X-ray diffraction (XRD) analysis indicated that single-phase MgAl2O4 powder could be obtained at 850 ℃,which is much lower than that needed in solid-state reactions.Transmission electron microscopy image showed that the as-prepared powder was in the nano scale and little agglomerate exited.It is concluded that this process need shorter time,lower temperature,and simple equipments.

关键词： MgAl2O4 Ultrafine powder Sol-gel Combustion synthesis

作者: Long Chen Qi Zhang Wenping Chen Yaogang Li Yanmu Chen Meifang Zhu

作者单位: State Key Lab.for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai,200051,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 407-408

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）