A3B2C3O12型石榴石结构微波介质陶瓷的研究进展  

Research progress on garnet A3B2C3O12 microwave dielectric ceramics

作　　者：李纯纯[1,2] 尹长志 肖洪祥 方亮[2] LI Chunchun;YIN Changzhi;XIAO Hongxiang;FANG Liang(College of Information Science and Engineering, Guilin University of Technology, Guilin 541000, Guangxi Zhuang Autonomous Region, China;State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guangxi Universities Key Laboratory of Non-Ferrous Metal Oxide Electronic Functional Materials and Devices, College of Material Science and Engineering, Guilin University of Technology, Guilin 541000, Guangxi Zhuang Autonomous Region, China)

机构地区：[1]桂林理工大学信息科学与工程学院,广西桂林541000 [2]桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,广西有色金属及特色材料加工省部共建国家重点实验室培育基地,广西桂林541000

出　　处：《电子元件与材料》2019年第10期1-6,共6页Electronic Components And Materials

基　　金：国家自然科学基金(51502047);广西自然科学基金(2018GXNSFAA281253)

摘　　要：立方石榴石结构的A3B2C3O12陶瓷是一类结构多样、性能可调的微波材料体系,目前对该体系的研究已取得初步成果,获得了一批性能优异的陶瓷材料。A3B2C3O12石榴石型陶瓷具有独特的结构特征和介电性能,本文以烧结温度为分类标准将其分为高温型和低温型,高温型主要包括Ga基石榴石型陶瓷,烧结温度一般偏高,在1500℃以上,低温型以钒酸盐为主,烧结温度低于961℃,部分陶瓷可以与Ag电极共烧应用于LTCC技术。总结了不同离子占位、离子取代和A位缺位对材料介电性能的影响,最后对钒酸盐基石榴石微波介质陶瓷的研究方向进行了展望。Cubic garnets with the formula of A3B2C3O12 are a functional material family with structural diversity and performance tunability.Recently, rapid progress has been made on these microwave dielectric ceramics and some excellent materials have been reported.Cubic garnets have the unique structure and dielectric properties.Based on sintering temperature, cubic garnets are divided into high-temperature type and low-temperature type.The former, of which the sintering temperature is higher than 1500 ℃, mainly includes Ga-based ceramics;while the latter is mainly based on V-containing ceramics with the sintering temperature lower than 961 ℃.Most of low-temperature type ceramics could co-fire with Ag electrode, rendering potential application in LTCC technology.The effects of cation distribution, substitution and A-site cation deficiency on the dielectric properties of the ceramics are summarized.Finally, the future research direction on vanadate garnet is pointed.

关 键 词：微波通讯 微波介质陶瓷 综述 石榴石结构 A3B2C3O12 介电性能 低温共烧陶瓷 

分 类 号：TQ174.1[化学工程—陶瓷工业]