Influence of B2O3 content on sintering behaviour and dielectric properties of La2O3-B2O3-CaO/Al2O3 glass-ceramic composites for LTCC applications

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, F.L.^1 ; Zhang, Y.W.^2 ; Chen, X.Y.^1 ; Mao, H.J.^1 ; Zhang, W.J.^1

Department of Materials Science and Engineering, National University of Defense Technology, Changsha

410073, China^1

Shandong Institute of Aerospace Electronic Technology, Yantai

264000, China^2

关键词: Crystalline phase;    Crystallization tendency;    Glass ceramic composites;    Low dielectric loss;    Mass ratio;    Melting method;    Sintering Aid;    Sintering process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012046/pdf
DOI  :  10.1088/1757-899X/292/1/012046

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

La2O3-B2O3-CaO glasses with different B2O3content were synthesized by melting method to produce glass/ceramic composites in this work. XRD and DSC results revealed that the diminution of B2O3content was beneficial to increase the crystallization tendency of glass and improve the quality of crystalline phase, while decreasing the effect of glass during sintering process as sintering aids. The choice of glass/ceramic mass ratio was also influenced by the B2O3content of glass. Dense samples sintered at 875 °C showed good dielectric properties which meet the requirement of LTCC applications: Moderate dielectric constant (7.8-9.4) and low dielectric loss (2.0×10-3).