AUTHOR=Zhang Lan , Yang Shuquan , Xiao Meihui , Chen Lin , Sun Jun , Ding Jianjun , Li Xiaoxiao , Gong Yi , Zheng Kang , Zhang Xian , Tian Xingyou 

TITLE=Effect of Bi-B-Si-Zn-Al glass additive on the properties of low-temperature sintered silicon carbide ceramics

JOURNAL=Frontiers in Physics

VOLUME=10

YEAR=2023

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.1090437

DOI=10.3389/fphy.2022.1090437

ISSN=2296-424X

ABSTRACT=<p>In this study, the performance of low-temperature sintered Bi-B-Si-Zn-Al glass/SiC composites by vacuum hot-press sintering between 700°C and 1000°C was investigated. The specimen had a relatively preferable density of 95.5% and thermal conductivity of 8.660 Wm<sup>−1</sup>K<sup>−1</sup> after sintering at 900°C for 2 h. The dielectric constant and dielectric loss tangle of the composite were 32.9 and 0.57 at 20 GHz, respectively. The XRD analysis indicated the formation of Bi, Zn and ZnAl<sub>2</sub>O<sub>4</sub> crystals, and the microstructure showed the low contact angle of the glass and SiC grain. Such low-temperature sintered SiC ceramic may have a promising application in the electronic field.</p>