Sintering behavior,structure and dielectric properties of CuO-ZnO-MgO-B2O3 glass-ceramics for ULTCC applications |
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| Affiliation: | 1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China;2. School of Materials Engineering, Xi’an Aeronatical University, Xi’an 710077 China;3. Shaanxi Huaqin Technology Industry Co., Ltd, Xi’an, China;4. Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China;5. The Third Affiliated Hospital of Air Force Medical University, Xi’an 710032, Shaanxi, China;1. Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China;2. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China;3. State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;4. School of Science, Wuhan University of Technology, Wuhan 430070, China;1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;2. Jiangxi Guo Chuang Industrial Park Development Co., Ltd., Ganzhou 341000, China |
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| Abstract: | High performance ultra-low temperature co-fired ceramic (ULTCC) materials were prepared from CuO- MgO- ZnO- Al2O3- B2O3- Li2O glass-ceramics. The sintering behaviors, crystalline phase evolution, microstructure and dielectric properties, as well as their compatibility with Ag and Al electrodes, were investigated. With the suitable substitution of MgO for ZnO, the dielectric properties of glass-ceramics were improved. It is mainly associated with the fine microstructure, highly crystallinity, and decrease in tetrahedral distortion in the crystal lattice. All the glasses completed the densification at 575–600 °C, and ZnB4O7 is the only crystalline phase precipitated from the glasses. Moreover, the glass-ceramic with 1 wt% MgO sintered at 575 °C for 5 h, exhibited low relative permittivity ~ 7.1 and low dielectric loss ~ 6.40 × 10?4. And the glass-ceramic with 4 wt% MgO sintered at 600 °C for 5 h, also displayed low relative permittivity ~ 7.1 and low dielectric loss ~ 5.77 × 10?4. Both two glasses have good sintering compatibility with silver and aluminum electrodes, which provided high potential for ULTCC application. |
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| Keywords: | ULTCC Borate glass Glass-ceramics Sintering behavior Dielectric properties |
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