Article(id=1322943529890227051, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210058, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1611072000000, receivedDateStr=2021-01-20, revisedDate=1615305600000, revisedDateStr=2021-03-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343916627, onlineDateStr=2026-10-30, pubDate=1634659200000, pubDateStr=2021-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343916627, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343916627, creator=13701087609, updateTime=1793343916627, updator=13701087609, issue=Issue{id=1322942849381183980, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='10', pageStart='2045', pageEnd='2312', issueExtLink='null', onlineDate='null', pubDate='1634659200000', pubDateStr='2021-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343754382, creator='13701087609', updateTime=1793345931656, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322951981580562527, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322951981584756832, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942849381183980, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2203, endPage=2210, ext={EN=ArticleExt(id=1322943530116719468, articleId=1322943529890227051, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Antioxidation and Microwave Absorption of Flattened FeCo@TiO2@Fe3O4 Core-Shell Composites, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The core-shell composites (FeCo@TiO2, FeCo@TiO2@Fe3O4) were fabricated via hydrolysis reactions with flattened FeCo as the core and TiO2 and Fe3O4 as the shell. The morphology and phase composition of the core-shell composites (i.e., FeCo@TiO2, FeCo@TiO2@Fe3O4) were characterized by scanning electron microscopy and X-ray diffraction. The results show that the core-shell composite is flattened with diameters of 20-50 μm and thicknesses of 3-5 μm. The main components of the coating layer are TiO2 and Fe3O4, which are uniformly distributed on the flattened FeCo core. The complex permittivity and permeability of the samples were measured in a frequency range of 2~18 GHz, and the reflection loss of the samples was calculated based on the transmission line theory. It is indicated that the effective absorption bandwidth of the FeCo@TiO2@Fe3O4 samples at room temperature is 3 GHz (RL<-10 dB) with the thickness of 2.5mm, and the minimum reflection loss of the sample is -35.4 dB. The effective absorption bandwidth is 2GHz, and the minimum RL value is -29.2 dB after annealing at 500℃. The thermogravimetric analysis indicates that the weight gain of FeCo@TiO2@Fe3O4 is 20% less than that of FeCo at 800℃.

, authors=Ping'an CHEN, Xin WANG, Yingli ZHU, Xiangcheng LI, Boquan ZHU, authorsList=Ping'an CHEN, Xin WANG, Yingli ZHU, Xiangcheng LI, Boquan ZHU, authorCompany=null, correspAuthors=Yingli ZHU, Xiangcheng LI, authorNote=

Chen Pingan (1986-), male, Ph.D, Associate/Professor. E-mail:

, correspAuthorsNote=
ZHU YingLi (1993-), female, Ph.D, Lec.; E-mail:
Li Xiangcheng (1978-), male, Ph.D, Prof.
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322943530431292269, articleId=1322943529890227051, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=扁平FeCo@TiO2@Fe3O4核壳结构抗氧化和微波吸收性能, columnId=0, journalTitle=硅酸盐学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

以扁平化FeCo为核,通过水热反应法将TiO2和Fe3O4包覆在FeCo表面,成功制备了扁平FeCo@TiO2和FeCo@TiO2@Fe3O4 2种核壳结构。采用扫描电子显微镜和X射线衍射对扁平FeCo@TiO2和扁平FeCo@TiO2@Fe3O4核壳结构的微观形貌和物相组成进行了表征。结果表明:制备粉体呈片状,直径为20~50 μm,厚度为3~5 μm;包覆层TiO2和Fe3O4均匀地分布在扁平化FeCo表面。通过测试样品2~18 GHz频率范围内的复介电常数和复磁导率,采用传输线理论计算样品的反射损耗表明,当样品厚度为2.5 mm时,FeCo@TiO2@Fe3O4核壳结构在常温下的有效吸收带宽(反射损耗RL<-10 dB时的频带宽度)为3.0 GHz,RL最小值达到-35.4 dB,500℃空气氧化后的有效吸收带宽为2 GHz,RL最小值为-29.2 dB。热重分析表明:由室温升温至800℃,FeCo@TiO2@Fe3O4增重较FeCo减少20%。

, authors=陈平安, 王昕, 朱颖丽, 李享成, 朱伯铨, authorsList=陈平安, 王昕, 朱颖丽, 李享成, 朱伯铨, authorCompany=null, correspAuthors=朱颖丽, 李享成, authorNote=

陈平安(1986—),男,博士,副教授。

, correspAuthorsNote=
朱颖丽(1993—),女,博士,讲师;
李享成(1978—),男,博士,教授,博士研究生导师。
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陈平安(1986—),男,博士,副教授。

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扁平FeCo@TiO2@Fe3O4核壳结构抗氧化和微波吸收性能
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陈平安 , 王昕 , 朱颖丽 , 李享成 , 朱伯铨
硅酸盐学报 | 2021,49(10): 2203-2210
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硅酸盐学报 | 2021 , 49 (10) : 2203 -2210
扁平FeCo@TiO2@Fe3O4核壳结构抗氧化和微波吸收性能
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陈平安 , 王昕, 朱颖丽 , 李享成 , 朱伯铨
作者信息
  • 武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081
通讯作者:
朱颖丽(1993—),女,博士,讲师;
李享成(1978—),男,博士,教授,博士研究生导师。
作者简介:

陈平安(1986—),男,博士,副教授。

Antioxidation and Microwave Absorption of Flattened FeCo@TiO2@Fe3O4 Core-Shell Composites
Ping'an CHEN , Xin WANG, Yingli ZHU , Xiangcheng LI , Boquan ZHU
Affiliations
  • The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
  • Corresponding Author:
    ZHU YingLi (1993-), female, Ph.D, Lec.; E-mail:
    Li Xiangcheng (1978-), male, Ph.D, Prof.

    Chen Pingan (1986-), male, Ph.D, Associate/Professor. E-mail:

出版时间: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20210058
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以扁平化FeCo为核,通过水热反应法将TiO2和Fe3O4包覆在FeCo表面,成功制备了扁平FeCo@TiO2和FeCo@TiO2@Fe3O4 2种核壳结构。采用扫描电子显微镜和X射线衍射对扁平FeCo@TiO2和扁平FeCo@TiO2@Fe3O4核壳结构的微观形貌和物相组成进行了表征。结果表明:制备粉体呈片状,直径为20~50 μm,厚度为3~5 μm;包覆层TiO2和Fe3O4均匀地分布在扁平化FeCo表面。通过测试样品2~18 GHz频率范围内的复介电常数和复磁导率,采用传输线理论计算样品的反射损耗表明,当样品厚度为2.5 mm时,FeCo@TiO2@Fe3O4核壳结构在常温下的有效吸收带宽(反射损耗RL<-10 dB时的频带宽度)为3.0 GHz,RL最小值达到-35.4 dB,500℃空气氧化后的有效吸收带宽为2 GHz,RL最小值为-29.2 dB。热重分析表明:由室温升温至800℃,FeCo@TiO2@Fe3O4增重较FeCo减少20%。

铁磁性粒子  /  电磁波吸收  /  多层核壳结构  /  抗氧化性

The core-shell composites (FeCo@TiO2, FeCo@TiO2@Fe3O4) were fabricated via hydrolysis reactions with flattened FeCo as the core and TiO2 and Fe3O4 as the shell. The morphology and phase composition of the core-shell composites (i.e., FeCo@TiO2, FeCo@TiO2@Fe3O4) were characterized by scanning electron microscopy and X-ray diffraction. The results show that the core-shell composite is flattened with diameters of 20-50 μm and thicknesses of 3-5 μm. The main components of the coating layer are TiO2 and Fe3O4, which are uniformly distributed on the flattened FeCo core. The complex permittivity and permeability of the samples were measured in a frequency range of 2~18 GHz, and the reflection loss of the samples was calculated based on the transmission line theory. It is indicated that the effective absorption bandwidth of the FeCo@TiO2@Fe3O4 samples at room temperature is 3 GHz (RL<-10 dB) with the thickness of 2.5mm, and the minimum reflection loss of the sample is -35.4 dB. The effective absorption bandwidth is 2GHz, and the minimum RL value is -29.2 dB after annealing at 500℃. The thermogravimetric analysis indicates that the weight gain of FeCo@TiO2@Fe3O4 is 20% less than that of FeCo at 800℃.

ferromagnetic particles  /  electromagnetic wave absorption  /  core-multishell structure  /  oxidation resistance
陈平安, 王昕, 朱颖丽, 李享成, 朱伯铨. 扁平FeCo@TiO2@Fe3O4核壳结构抗氧化和微波吸收性能. 硅酸盐学报, 2021 , 49 (10) : 2203 -2210 . DOI: 10.14062/j.issn.0454-5648.20210058
Ping'an CHEN, Xin WANG, Yingli ZHU, Xiangcheng LI, Boquan ZHU. Antioxidation and Microwave Absorption of Flattened FeCo@TiO2@Fe3O4 Core-Shell Composites[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2203 -2210 . DOI: 10.14062/j.issn.0454-5648.20210058
  • 国家自然科学基金(51972242)
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doi: 10.14062/j.issn.0454-5648.20210058
  • 接收时间:2021-01-20
  • 首发时间:2026-10-30
  • 出版时间:2021-10-20
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  • 收稿日期:2021-01-20
  • 修回日期:2021-03-10
基金
国家自然科学基金(51972242)
作者信息
    武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081

通讯作者:

朱颖丽(1993—),女,博士,讲师;
李享成(1978—),男,博士,教授,博士研究生导师。
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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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