Article(id=1319222650237468924, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222618356559896, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220702, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1661702400000, receivedDateStr=2022-08-29, revisedDate=1664899200000, revisedDateStr=2022-10-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1792456789788, onlineDateStr=2026-10-20, pubDate=1681920000000, pubDateStr=2023-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792456789788, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792456789788, creator=13701087609, updateTime=1792456789788, 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=872, endPage=881, ext={EN=ArticleExt(id=1319222650422018301, articleId=1319222650237468924, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Rattling Effect in A Site and Microwave Dielectric Properties of Ca3-xMgxYb2Ge3O12 (0≤x≤3) Garnets, columnId=1321891335796281568, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on 5G/6G Materials—Research Articles, runingTitle=null, highlight=null, articleAbstract=

Microwave dielectric ceramics are the key basic materials of 5G/6G communication technology, and the materials with a high quality factor (Q×f), a low dielectric constant (εr) and a near-zero temperature coefficient of resonant frequency (τf) become a focus of research and development. In this paper, a series of garnet Ca3-xMgxYb2Ge3O12 (0≤x≤3) ceramics were prepared by a solid-state reaction approach, and the influence of Mg2+ "rattling" effects in the A-site on the microwave dielectric properties was investigated. The ceramics with 0≤x≤2 exhibit a normal garnet structure, εr gradually increases from 10.3 to 11.8, whereas the Q×f gradually decreases from 98 000 GHz to 78 000 GHz, and τf is in the range from -40×10-6 to -56×10-6/℃. The ceramics with 2<x≤3 have an inverse garnet structure with Mg2+ in the A-site and εr quickly increases to 13.5, whereas the Q×f apparently decreases to 19, 800 GHz, and the τf value varies from the negative value to the positive value (+70.5×10-6/℃), which are attributed to the rattling effect Mg2+ and the mismatch between Mg2+ and Yb3+ in the A-site. According to the extrapolated values of the far-infrared reflective spectrum in the microwave region, the intrinsic εr and Q×f values are in a reasonable agreement with the measured values.

, authors=Ying TANG1, 2, Huaicheng XIANG1, 2, Jie LI1, Liang FANG1, authorsList=Ying TANG, Huaicheng XIANG, Jie LI, Liang FANG, authorCompany=null, correspAuthors=Liang FANG, authorNote=

TANG Ying (1988-), female, Ph.D., Associate Professor. E-mail:

, correspAuthorsNote=
FANG Liang (1970-), male, Ph.D., Professor. E-mail:
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微波介质陶瓷是5G/6G通讯技术的关键基础材料,具有高品质因数(Q×f)、低介电常数(εr)以及近零谐振频率温度系数(τf)的材料已逐渐成为研究与开发的重点。通过固相反应法制备了系列Ca3-xMgxYb2Ge3O12(0≤x≤3)石榴石陶瓷。当0≤x≤2时,样品为正石榴石结构,相对介电常数εr逐渐从10.3增加至11.8,品质因数Q×f值逐渐从98000 GHz降低到78000 GHz,谐振频率温度系数τf在(-40~-56)×10-6/℃之间波动。当2<x≤3时,Mg2+进入A位,εr迅速增大(~13.5),Q×f值显著降低(~19800 GHz),τf值则从负急剧转变为正(+70.5×10-6/℃),可归之于A位Mg2+的Rattling效应以及Mg2+与Yb3+失配的缘故。根据远红外反射谱拟合外推了Ca3-xMgxYb2Ge3O12(0≤x≤3)陶瓷微波频段的本征εr和Q×f值,与实际测量值相符合。

, authors=唐莹1, 2, 相怀成1, 2, 李洁1, 方亮1, authorsList=唐莹, 相怀成, 李洁, 方亮, authorCompany=null, correspAuthors=方亮, authorNote=

唐莹(1988—),女,博士,副研究员。

, correspAuthorsNote=
方亮(1970—),男,博士,教授。
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Ca3-xMgxYb2Ge3O12 (0≤x≤3)石榴石的A位Rattling效应与微波介电性能
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唐莹 1, 2 , 相怀成 1, 2 , 李洁 1 , 方亮 1
硅酸盐学报 | 5G/6G材料专题—研究论文 2023,51(4): 872-881
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硅酸盐学报 |5G/6G材料专题—研究论文 2023 , 51 (4) : 872 -881
Ca3-xMgxYb2Ge3O12 (0≤x≤3)石榴石的A位Rattling效应与微波介电性能
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唐莹1, 2 , 相怀成1, 2, 李洁1, 方亮1
作者信息
  • 1.桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,广西光电材料与器件重点实验室,广西 桂林 541004
  • 2.桂林理工大学理学院,广西 桂林 541004
通讯作者:
方亮(1970—),男,博士,教授。
作者简介:

唐莹(1988—),女,博士,副研究员。

Rattling Effect in A Site and Microwave Dielectric Properties of Ca3-xMgxYb2Ge3O12 (0≤x≤3) Garnets
Ying TANG1, 2 , Huaicheng XIANG1, 2, Jie LI1, Liang FANG1
Affiliations
  • 1.Guangxi Universities Key Laboratory of Non-ferrous Metal Oxide Electronic Functional Materials and Devices, Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, Guangxi, China
  • 2.College of Science, Guilin University of Technology, Guilin 541004, Guangxi, China
  • Corresponding Author:
    FANG Liang (1970-), male, Ph.D., Professor. E-mail:

    TANG Ying (1988-), female, Ph.D., Associate Professor. E-mail:

出版时间: 2023-04-20 doi: 10.14062/j.issn.0454-5648.20220702
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微波介质陶瓷是5G/6G通讯技术的关键基础材料,具有高品质因数(Q×f)、低介电常数(εr)以及近零谐振频率温度系数(τf)的材料已逐渐成为研究与开发的重点。通过固相反应法制备了系列Ca3-xMgxYb2Ge3O12(0≤x≤3)石榴石陶瓷。当0≤x≤2时,样品为正石榴石结构,相对介电常数εr逐渐从10.3增加至11.8,品质因数Q×f值逐渐从98000 GHz降低到78000 GHz,谐振频率温度系数τf在(-40~-56)×10-6/℃之间波动。当2<x≤3时,Mg2+进入A位,εr迅速增大(~13.5),Q×f值显著降低(~19800 GHz),τf值则从负急剧转变为正(+70.5×10-6/℃),可归之于A位Mg2+的Rattling效应以及Mg2+与Yb3+失配的缘故。根据远红外反射谱拟合外推了Ca3-xMgxYb2Ge3O12(0≤x≤3)陶瓷微波频段的本征εr和Q×f值,与实际测量值相符合。

微波介质陶瓷  /  Rattling效应  /  石榴石  /  介电性能

Microwave dielectric ceramics are the key basic materials of 5G/6G communication technology, and the materials with a high quality factor (Q×f), a low dielectric constant (εr) and a near-zero temperature coefficient of resonant frequency (τf) become a focus of research and development. In this paper, a series of garnet Ca3-xMgxYb2Ge3O12 (0≤x≤3) ceramics were prepared by a solid-state reaction approach, and the influence of Mg2+ "rattling" effects in the A-site on the microwave dielectric properties was investigated. The ceramics with 0≤x≤2 exhibit a normal garnet structure, εr gradually increases from 10.3 to 11.8, whereas the Q×f gradually decreases from 98 000 GHz to 78 000 GHz, and τf is in the range from -40×10-6 to -56×10-6/℃. The ceramics with 2<x≤3 have an inverse garnet structure with Mg2+ in the A-site and εr quickly increases to 13.5, whereas the Q×f apparently decreases to 19, 800 GHz, and the τf value varies from the negative value to the positive value (+70.5×10-6/℃), which are attributed to the rattling effect Mg2+ and the mismatch between Mg2+ and Yb3+ in the A-site. According to the extrapolated values of the far-infrared reflective spectrum in the microwave region, the intrinsic εr and Q×f values are in a reasonable agreement with the measured values.

microwave dielectric ceramics  /  Rattling effect  /  garnet  /  dielectric properties
唐莹, 相怀成, 李洁, 方亮. Ca3-xMgxYb2Ge3O12 (0≤x≤3)石榴石的A位Rattling效应与微波介电性能. 硅酸盐学报, 2023 , 51 (4) : 872 -881 . DOI: 10.14062/j.issn.0454-5648.20220702
Ying TANG, Huaicheng XIANG, Jie LI, Liang FANG. Rattling Effect in A Site and Microwave Dielectric Properties of Ca3-xMgxYb2Ge3O12 (0≤x≤3) Garnets[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (4) : 872 -881 . DOI: 10.14062/j.issn.0454-5648.20220702
  • 国家自然科学基金项目(21965009)
  • 广西壮族自治区自然科学基金项目(2022GXNSFBA035602)
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doi: 10.14062/j.issn.0454-5648.20220702
  • 接收时间:2022-08-29
  • 首发时间:2026-10-20
  • 出版时间:2023-04-20
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  • 收稿日期:2022-08-29
  • 修回日期:2022-10-05
基金
国家自然科学基金项目(21965009)
广西壮族自治区自然科学基金项目(2022GXNSFBA035602)
作者信息
    1.桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,广西光电材料与器件重点实验室,广西 桂林 541004
    2.桂林理工大学理学院,广西 桂林 541004

通讯作者:

方亮(1970—),男,博士,教授。
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2种不同金属材料的力学参数
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genus
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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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