第20届全国高技术陶瓷学术年会
SiO2 -BPO4 /LMZBS低温烧结玻璃陶瓷及其微波介电性能
刘贺, 傅仁利, 何钦江, 李国郡, 王贺
南京航空航天大学材料科学与技术学院,南京 210016
Low Temperature Sintering and Microwave Dielectric Properties of SiO2 -BPO4 /LMZBS Glass Ceramics
LIU He, FU Renli, HE Qinjiang, LI Guojun, WANG He
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
摘要 采用固相反应法制备x SiO2 -(1-x )BPO4 微波介质陶瓷,研究了LMZBS玻璃助烧剂对陶瓷物相组成、显微结构、微波介电性能的影响。结果表明:添加LMZBS玻璃可使SiO2 -BPO4 玻璃陶瓷的烧结温度降低至900 ℃。当LMZBS的添加量为4%(质量分数,下同)时,70SiO2 -30BPO4 (质量分数/%)在900 ℃烧结2 h时,陶瓷的介电性能最佳(ε r =4.0、Q ×f =22 600 GHz、τ f =-22×10-6 /℃)。同时,烧结过程中玻璃相的存在抑制了体系中硼离子的挥发,改善了陶瓷的显微结构,保证了其与银电极具有良好的共烧性。此外,CaTiO3 的引入能有效调节70SiO2 -30BPO4 陶瓷的τ f ,当CaTiO3 添加量为5%(质量分数)、烧结温度为900 ℃时,陶瓷具有最佳的介电性能(ε r =4.4, Q ×f =17 800 GHz, τ f =6×10-6 /℃),有望应用于LTCC基板。
关键词:
玻璃陶瓷
LTCC
介电性能
液相烧结
Abstract: x SiO2 -(1-x )BPO4 microwave dielectric ceramics had been prepared by solid-state reaction. The effects of LMZBS glass sintering aid on the phase composition, microstructure and microwave dielectric properties of ceramics was studied. The results show that the addition of LMZBS glass could lower the sintering temperature of SiO2 -BPO4 glass ceramics to 900 ℃, and the best dielectric properties of the ceramics(i.e.,ε r =4.0, Q ×f =22 600 GHz, τ f =-22 ×10-6 /℃) are obtained when the mass ratio of silicon and boron-phosphors is 70:30 and the addition of LMZBS is 4wt% at 900 ℃ for 2 h. Moreover, the presence of glass phase in the sintering process inhibited boron ions volatilization, which improved the microstructure and ensured excellent co-firing with Ag electrode. In addition, the introduction of CaTiO3 can effectively adjust the τ f of 70SiO2 -30BPO4 ceramics. The ceramics possess optimum dielectric properties (ε r =4.4, Q ×f =17 800 GHz, τ f =6×10-6 /℃) when the addition of CaTiO3 is 5wt% and sintered at 900 ℃, which is a promised candidate for LTCC application.
Key words:
glass/ceramics
LTCC,dielectric properties,liquid phase sintering
出版日期: 2019-09-25
发布日期: 2019-07-31
基金资助: 江苏省重点研发计划(BE2016050);江苏高校优势学科建设工程
通讯作者:
renlifu@nuaa.deu.cn
作者简介: 刘贺,2019年3月毕业于南京航空航天大学,获得工程硕士学位。目前主要研究方向为微波介质陶瓷。
引用本文:
刘贺, 傅仁利, 何钦江, 李国郡, 王贺. SiO2 -BPO4 /LMZBS低温烧结玻璃陶瓷及其微波介电性能[J]. 材料导报, 2019, 33(18): 3152-3155.
2 -BPO4 /LMZBS Glass Ceramics. Materials Reports, 2019, 33(18): 3152-3155.
链接本文:
http://www.mater-rep.com/CN/10.11896/cldb.19040034
或
http://www.mater-rep.com/CN/Y2019/V33/I18/3152
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2019, Vol. 33 
