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Low Dielectric Loss and High Dielectric Breakdown Strength in Al2O3-Based Low-Temperature Co-Fired Ceramic Materials
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Fei WANG1, 2, 3, Xiaoqiang SONG3, Changzhi YIN1, 2, 3, Wen LEI1, 2, 3, Wenzhong LYU1, 2, 3
Journal of the Chinese Ceramic Society | 2023, 51(4) : 882 - 888
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Journal of the Chinese Ceramic Society | 2023, 51(4): 882-888
• Research Articles •
Low Dielectric Loss and High Dielectric Breakdown Strength in Al2O3-Based Low-Temperature Co-Fired Ceramic Materials
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Fei WANG1, 2, 3, Xiaoqiang SONG3, Changzhi YIN1, 2, 3, Wen LEI1, 2, 3, Wenzhong LYU1, 2, 3
Affiliations
  • 1.Key lab of Functional Materials for Electronic Information (B) of MOE, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2.School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
  • 3.Wenzhou Advanced Manufacturing Institute of Huazhong University of Science and Technology, Wenzhou 325035, Zhejiang, China

    • WANG Fei (1990-), female, Doctoral candidate.

About Author:

WANG Fei (1990-), female, Doctoral candidate.

Published: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220626
Outline
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To obtain Al2O3-based low-temperature co-fired ceramic (LTCC) materials with low dielectric loss and high breakdown strength, glass/ceramics of x(La2O3-CaO-B2O3-SiO2)(LCBS)+(1-x)Al2O3 were synthesized by a solid-state method. The structure and properties of the sintered samples were characterized by X-ray diffractometer, scanning electron microscope, vector network analyzer, high voltage breakdown instrument, and high-temperature dielectric spectrometer. The results show that adding an appropriate amount of LCBS glass powder can increase the density, reduce the dielectric loss and improve the breakdown strength of the composites. Moreover, based on the complex impedance spectrum analysis, the addition of LCBS can significantly increase the resistivity and activation energy of glass/ceramics. When Al2O3 ceramic with 44 %(mole fraction) LCBS glass (abbreviated G44) is sintered at 850 ℃ for 0.5 h, a LTCC ceramic material with the superior properties (i.e., εr=7.14, Q×f =5 769 GHz at f =13 GHz, and Eb=57.44 kV/mm) can be obtained.

glass/ceramics  /  low-temperature sintering  /  microwave dielectric properties  /  breakdown strength
王飞, 宋小强, 尹长志, 雷文, 吕文中. 低损耗高耐压Al2O3基低温共烧陶瓷. 硅酸盐学报, 2023 , 51 (4) : 882 -888 . DOI: 10.14062/j.issn.0454-5648.20220626
Fei WANG, Xiaoqiang SONG, Changzhi YIN, Wen LEI, Wenzhong LYU. Low Dielectric Loss and High Dielectric Breakdown Strength in Al2O3-Based Low-Temperature Co-Fired Ceramic Materials[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (4) : 882 -888 . DOI: 10.14062/j.issn.0454-5648.20220626
Appendix
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Year 2023 volume 51 Issue 4
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Article Info
doi: 10.14062/j.issn.0454-5648.20220626
  • Receive Date：2022-08-01
  • Online Date：2026-10-20
  • Published：2023-04-20
Article Data
Affiliations
History
  • Received：2022-08-01
  • Revised：2022-10-24
Funding
Affiliations
    1.Key lab of Functional Materials for Electronic Information (B) of MOE, Huazhong University of Science and Technology, Wuhan 430074, China
    2.School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
    3.Wenzhou Advanced Manufacturing Institute of Huazhong University of Science and Technology, Wenzhou 325035, Zhejiang, China

Corresponding:

LYU Wenzhong (1966-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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