A synergistic effect of Li-B-Si glass and La-B on low-temperature sintering of BaO-0.15ZnO-4TiO2 dielectric ceramic. Issue 9 (15th June 2017)

• Record Type: Journal Article
• Authors: Duan, Shuxin; Li, Enzhu; Yang, Hongyu; Tang, Bin; Yuan, Ying; He, Hongcai; Zhang, Shuren
• Is Part Of: Ceramics international. Volume 43:Issue 9(2017)
• Page Start: 6659
• Page End: 6665
• Publication Date: 2017-06-15
• Subjects: BaO-0.15ZnO-4TiO2 -- LTCC -- Li2O-B2O3-SiO2 glass -- La2O3-B2O3 -- Microwave dielectric ceramics; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2017.02.026
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In the present work, the synergistic effect of Li2 O-B2 O3 -SiO2 glass (LBS) and La2 O3 -B2 O3 (LaB) addition on the wetting behavior, activation energy, phase composition, microstructure and microwave dielectric properties of the BaO-0.15ZnO-4TiO2 ceramic (Ba-Zn-Ti) has been investigated to understand the low temperature mechanism of the sintering kinetic. The results show that co-doping with LBS and LaB decreases the activation energy and therefore accelerates the sintering process of the Ba-Zn-Ti due to the liquid phase formed at a low sintering temperature. Moreover, the co-doping of LBS and LaB restrains the appearance of BaTi(BO3 )2 caused by the reaction of Ba-Zn-Ti and LBS, which has a deleterious effect on the densification and microwave dielectric properties of Ba-Zn-Ti. With LBS and LaB co-doped, the sintering temperature of Ba-Zn-Ti significantly dropped from 1150 °C to 850–900 °C and remained excellent microwave dielectric properties.