Improved the Comprehensive Properties of Low‐Temperature Co‐Fired Ceramic Composites Based on ZnO–B2O3–Na2O–Al2O3–SiO2 Glass by Introducing AlN Nano particles. Issue 6 (11th March 2021)

• Record Type: Journal Article
• Authors: Lv, Yuanyuan; Zhang, Lan; Yang, Shuquan; Wang, Zhihua; Chen, Lin; Sun, Jun; Li, Xiaoxiao; Ding, Jianjun; Zheng, Kang; Gong, Yi; Zhang, Xian; Tian, Xingyou
• Is Part Of: Advanced engineering materials. Volume 23:Issue 6(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-03-11
• Subjects: AlN -- dielectric properties -- low-temperature co-fired ceramics -- thermal conduction -- ZnAl2O4; Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.202001548
• Languages: English
• ISSNs: 1438-1656

Abstract

Abstract : ZnO–B2 O3 –Na2 O–Al2 O3 –SiO2 (ZBNAS) glass/Al2 O3 /AlN biphasic ceramics are prepared by a standard tape casting process and solid phase sintering. The low‐temperature co‐fired ceramic (LTCC) tapes are sintered at 850 °C for 2 h under a nitrogen atmosphere. The new phase of ZnAl2 O4 is formed by the reaction between glass phase and ceramic fillers during the sintering process. The addition of AlN improves the comprehensive properties of the ZBNAS glass/Al2 O3 composites. The samples with 30 wt% AlN exhibit a thermal conductivity of 5.48 W m −1 K −1, a low dielectric constant of 2.99 and a dielectric loss of 0.029 at 18 GHz, and a coefficient of thermal expansion (CTE) of 6.98 × 10 −6 °C −1 . The obtained composite ceramic with good comprehensive performance may be the promising candidates for high‐power devices. Abstract : ZnO–B2 O3 –Na2 O–Al2 O3 –SiO2 (ZBNAS) glass/Al2 O3 /AlN biphasic ceramics prepared by a standard tape casting process are sintered at 850 °C for 2 h under a nitrogen atmosphere. The sintered sheets exhibit excellent comprehensive properties, such as high thermal conductivity and low dielectric properties. The obtained low‐temperature co‐fired ceramic (LTCC) composites may be the promising candidates for high‐power devices.