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Porous Alumina Ceramics with Ultra-Low Dielectric Constant and Directional Pore Channels for 6G Telecommunication Applications
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Yugu CHEN, Weijia GUO, Zhiyu MA, Yutian LU, Zhenxing YUE
Journal of the Chinese Ceramic Society | 2023, 51(4) : 859 - 865
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Journal of the Chinese Ceramic Society | 2023, 51(4): 859-865
• Research Articles •
Porous Alumina Ceramics with Ultra-Low Dielectric Constant and Directional Pore Channels for 6G Telecommunication Applications
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Yugu CHEN, Weijia GUO, Zhiyu MA, Yutian LU, Zhenxing YUE
Affiliations
  • State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

    • CHEN Yugu (1993-), female, Doctoral candidate. E-mail:

About Author:

CHEN Yugu (1993-), female, Doctoral candidate. E-mail:

Published: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220467
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To meet the requirements of low-latency communication technology in the 6G terahertz band, porous alumina ceramics with ultra-low dielectric constant and directional pore channels were prepared by a freeze-drying method. A relationship between the structure and the properties of samples from different locations was investigated. The effect of solid content on the microstructure, mechanical properties, terahertz optical and dielectric properties was analyzed. Porous alumina ceramics with high porosity (i.e., 68.9%-81.0%) and compressive strength (i.e., 17.6-87.8 MPa) can be obtained, having ultra-low refractive index (i.e., 1.38-1.63), absorption coefficient (i.e., ~2.5 cm-1), dielectric constant (i.e., 1.90-2.67), and z dielectric loss (i.e., ~0.008) at 1 THz. The directional pore channels exhibit high compressive strength in the direction parallel to the pores, and the special structure has potential applications for terahertz waveguides and antenna substrates.

porous alumina ceramics  /  directional pore channels  /  terahertz  /  optical properties  /  dielectric properties
陈雨谷, 郭蔚嘉, 马志宇, 卢雨田, 岳振星. 面向6G应用的超低介电常数定向通孔Al2O3陶瓷. 硅酸盐学报, 2023 , 51 (4) : 859 -865 . DOI: 10.14062/j.issn.0454-5648.20220467
Yugu CHEN, Weijia GUO, Zhiyu MA, Yutian LU, Zhenxing YUE. Porous Alumina Ceramics with Ultra-Low Dielectric Constant and Directional Pore Channels for 6G Telecommunication Applications[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (4) : 859 -865 . DOI: 10.14062/j.issn.0454-5648.20220467
Appendix
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Year 2023 volume 51 Issue 4
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Article Info
doi: 10.14062/j.issn.0454-5648.20220467
  • Receive Date：2022-06-10
  • Online Date：2026-10-20
  • Published：2023-04-20
Article Data
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History
  • Received：2022-06-10
  • Revised：2022-07-07
Funding
Affiliations
    State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Corresponding:

YUE Zhenxing (1963-), 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
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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