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纳米MgTiO3对Mg(Ca)TiO3微波介质陶瓷烧结行为及介电性能的影响
引用本文:郭娜,胡一晨,王中俭,徐杰,夏冬. 纳米MgTiO3对Mg(Ca)TiO3微波介质陶瓷烧结行为及介电性能的影响[J]. 医学教育探索, 2010, 0(4): 535-540
作者姓名:郭娜  胡一晨  王中俭  徐杰  夏冬
作者单位:华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海市先进聚合物材料重点实验室,上海 200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海市先进聚合物材料重点实验室,上海 200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海市先进聚合物材料重点实验室,上海 200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海市先进聚合物材料重点实验室,上海 200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海市先进聚合物材料重点实验室,上海 200237
基金项目:上海市重点学科和重点实验室项目(B502、08DZ2230500)
摘    要:为了降低MgTiO3CaTiO3陶瓷体系的烧结温度,以钛酸丁酯、醋酸镁为原料,采用溶胶凝胶法制备MgTiO3陶瓷纳米粉体。通过DTA、XRD、FTIR、SEM等观察到纳米MgTiO3陶瓷粉体颗粒分布均匀,粒度约为100 nm,并且成相良好。以MgTiO3纳米粉体按不同比例掺入固相合成的MgTiO3CaTiO3陶瓷体系中,并对该纳米复相陶瓷的烧结性能和介电性能进行了研究。结果表明:当MgTiO3纳米粉体的掺杂摩尔分数为20%时,体系的烧结温度从1 350 ℃降至1 250 ℃,体积密度达到理论密度的97%以上,并且具有良好的介电性能:εr=19.3, tan σ= 1.31×10-3(1.23 MHz)。

关 键 词:微波介质陶瓷; 溶胶凝胶法; 低温烧结; 介电性能

Effects of Nano Scale MgTiO3 on Sintering Behavior and DielectricProperties of Mg(Ca)TiO3 Microwave Dielectric Ceramics
GUO N,HU Yi chen,WANG Zhong jian,XU Jie and XIA Dong. Effects of Nano Scale MgTiO3 on Sintering Behavior and DielectricProperties of Mg(Ca)TiO3 Microwave Dielectric Ceramics[J]. Researches in Medical Education, 2010, 0(4): 535-540
Authors:GUO N  HU Yi chen  WANG Zhong jian  XU Jie  XIA Dong
Affiliation:Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
Abstract:
Keywords:microwave dielectric ceramics   sol gel method   low temperature sintering   dielectric properties
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