Article(id=1319222628104122460, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222618356559896, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220467, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1654790400000, receivedDateStr=2022-06-10, revisedDate=1657123200000, revisedDateStr=2022-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1792456784510, onlineDateStr=2026-10-20, pubDate=1681920000000, pubDateStr=2023-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792456784510, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792456784510, creator=13701087609, updateTime=1792456784510, updator=13701087609, issue=Issue{id=1319222618356559896, tenantId=1146029695717560320, journalId=1263187385517883426, year='2023', volume='51', issue='4', pageStart='831', pageEnd='1090', issueExtLink='null', onlineDate='null', pubDate='1681920000000', pubDateStr='2023-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792456782187, creator='13701087609', updateTime=1792456947953, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319223313692472320, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222618356559896, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319223313692472321, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222618356559896, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=859, endPage=865, ext={EN=ArticleExt(id=1319222628343197789, articleId=1319222628104122460, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Porous Alumina Ceramics with Ultra-Low Dielectric Constant and Directional Pore Channels for 6G Telecommunication Applications, columnId=1321891335796281568, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on 5G/6G Materials—Research Articles, runingTitle=null, highlight=null, articleAbstract=

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.

, authors=Yugu CHEN, Weijia GUO, Zhiyu MA, Yutian LU, Zhenxing YUE, authorsList=Yugu CHEN, Weijia GUO, Zhiyu MA, Yutian LU, Zhenxing YUE, authorCompany=null, correspAuthors=Zhenxing YUE, authorNote=

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

, correspAuthorsNote=
YUE Zhenxing (1963-), male, Ph.D., Professor. E-mail:
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为了满足6G太赫兹频段低时延通信技术的要求,采用冷冻干燥法制备了具有超低介电常数的定向通孔结构多孔氧化铝陶瓷。研究不同部位样品的结构与性能关系,以及固相含量对微观形貌、力学性能、太赫兹光学和介电性能的影响。获得具有高气孔率(68.9%~81.0%)、高抗压强度(17.6~87.8 MPa)的多孔氧化铝陶瓷,在1 THz下具有超低的折射率(1.38~1.63)、吸收系数(~2.5 cm-1)、介电常数(1.90~2.67)和介电损耗(~0.008)。定向通孔结构在与气孔平行的方向具有高抗压强度,其特殊的结构在太赫兹波导和天线基板等方面有重要的潜在应用价值。

, authors=陈雨谷, 郭蔚嘉, 马志宇, 卢雨田, 岳振星, authorsList=陈雨谷, 郭蔚嘉, 马志宇, 卢雨田, 岳振星, authorCompany=null, correspAuthors=岳振星, authorNote=

陈雨谷(1993—),女,博士研究生。

, correspAuthorsNote=
岳振星(1963—),男,博士,教授。
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面向6G应用的超低介电常数定向通孔Al2O3陶瓷
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陈雨谷 , 郭蔚嘉 , 马志宇 , 卢雨田 , 岳振星
硅酸盐学报 | 5G/6G材料专题—研究论文 2023,51(4): 859-865
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硅酸盐学报 |5G/6G材料专题—研究论文 2023 , 51 (4) : 859 -865
面向6G应用的超低介电常数定向通孔Al2O3陶瓷
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陈雨谷 , 郭蔚嘉, 马志宇, 卢雨田, 岳振星
作者信息
  • 清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京 100084
通讯作者:
岳振星(1963—),男,博士,教授。
作者简介:

陈雨谷(1993—),女,博士研究生。

Porous Alumina Ceramics with Ultra-Low Dielectric Constant and Directional Pore Channels for 6G Telecommunication Applications
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
  • Corresponding Author:
    YUE Zhenxing (1963-), male, Ph.D., Professor. E-mail:

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

出版时间: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220467
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为了满足6G太赫兹频段低时延通信技术的要求,采用冷冻干燥法制备了具有超低介电常数的定向通孔结构多孔氧化铝陶瓷。研究不同部位样品的结构与性能关系,以及固相含量对微观形貌、力学性能、太赫兹光学和介电性能的影响。获得具有高气孔率(68.9%~81.0%)、高抗压强度(17.6~87.8 MPa)的多孔氧化铝陶瓷,在1 THz下具有超低的折射率(1.38~1.63)、吸收系数(~2.5 cm-1)、介电常数(1.90~2.67)和介电损耗(~0.008)。定向通孔结构在与气孔平行的方向具有高抗压强度,其特殊的结构在太赫兹波导和天线基板等方面有重要的潜在应用价值。

多孔氧化铝陶瓷  /  定向通孔  /  太赫兹  /  光学性能  /  介电性能

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
  • 广东省重点领域研发计划项目(2020B010176001)
  • 国家自然科学基金(51872160)
  • 国家重点研发计划项目(2017YFB0406301)
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2023年第51卷第4期
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doi: 10.14062/j.issn.0454-5648.20220467
  • 接收时间:2022-06-10
  • 首发时间:2026-10-20
  • 出版时间:2023-04-20
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  • 收稿日期:2022-06-10
  • 修回日期:2022-07-07
基金
广东省重点领域研发计划项目(2020B010176001)
国家自然科学基金(51872160)
国家重点研发计划项目(2017YFB0406301)
作者信息
    清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京 100084

通讯作者:

岳振星(1963—),男,博士,教授。
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2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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