Article(id=1322943198624088181, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942495801356913, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200458, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1593014400000, receivedDateStr=2020-06-25, revisedDate=1593878400000, revisedDateStr=2020-07-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343837647, onlineDateStr=2026-10-30, pubDate=1616169600000, pubDateStr=2021-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343837647, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343837647, creator=13701087609, updateTime=1793343837647, updator=13701087609, issue=Issue{id=1322942495801356913, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='3', pageStart='441', pageEnd='604', issueExtLink='null', onlineDate='null', pubDate='1616169600000', pubDateStr='2021-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343670081, creator='13701087609', updateTime=1793345495044, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322950150322258738, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942495801356913, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322950150322258739, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942495801356913, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=469, endPage=475, ext={EN=ArticleExt(id=1322943201186807926, articleId=1322943198624088181, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Influence of La-Ho Doping on Microstructure Formation of BiFeO3, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

BiFeO3 (BFO) and Bi0.8La0.1Ho0.1FeO3 (BLHFO) materials were prepared by a solid-state reaction method. The dynamic process of melting and solidification of the samples was observed in real time by high temperature polarizing microscopy. The phase composition, microstructure and element distribution of the solidified samples were analyzed by X-ray diffraction, scanning electron microscopy and energy dispersive spectrometry. It is indicated that BFO and BLHFO samples both have polyhedral Fe2O3 grains precipitated along with the melting and further grow in the cooling process. Based on the results by SEM, a continuous Bi2O3 phase is mixed with a small amount of micron-sized Fe2O3 grains and a large amount of micron-sized BiFeO3 grains. BiFeO3 grains in the undoped samples are irregular, while La-Ho doped samples form regular cubic BiFeO3 crystals. In addition, Fe2O3 grains in the co-doped sample only contain La element. La and Ho can be co-doped into BiFeO3 polyhedral grains.

, authors=Junhuai XIANG1, Mingfeng LIU1, Xiuhong PAN2, Minghui ZHANG2, Xuechao LIU2, authorsList=Junhuai XIANG, Mingfeng LIU, Xiuhong PAN, Minghui ZHANG, Xuechao LIU, authorCompany=null, correspAuthors=Xiuhong PAN, authorNote=

XIANG Junhuai (1971-), male, Ph.D., Professor. E-mail:

, correspAuthorsNote=
PAN Xiuhong (1976-), male, Ph.D., Associate Professor. E-mail:
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采用固相合成方法制备了BiFeO3(BFO)、Bi0.8La0.1Ho0.1FeO3(BLHFO)样品,并利用高温偏光显微镜实时观察了样品升温熔化-凝固的动态过程,凝固后的样品通过微焦斑二维衍射仪、扫描电子显微镜及能谱仪分析其物相组成、微观形貌及元素分布。实时观察发现BFO和BLHFO样品升温过程中均呈现边熔化边析出多面体Fe2O3晶粒,并在降温过程中进一步长大的现象。凝固后的SEM扫描显示,在连续的Bi2O3相中夹杂少量几十微米的Fe2O3晶粒,以及大量几微米的BiFeO3晶粒,未掺杂的样品中BiFeO3是无规则的,而La-Ho掺杂的样品中形成了规则立方体形状的BiFeO3晶体。此外,能谱分析还显示,共掺样品中Fe2O3晶粒内只含有La元素,而La和Ho元素可以共掺进入BiFeO3多面体晶粒中。

, authors=向军淮1, 柳明凤1, 潘秀红2, 张明辉2, 刘学超2, authorsList=向军淮, 柳明凤, 潘秀红, 张明辉, 刘学超, authorCompany=null, correspAuthors=潘秀红, authorNote=

向军淮(1971—),男,博士,教授。

, correspAuthorsNote=
潘秀红(1976—),男,博士,副研究员。
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La-Ho掺杂对BiFeO3组织结构形成的影响
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向军淮 1 , 柳明凤 1 , 潘秀红 2 , 张明辉 2 , 刘学超 2
硅酸盐学报 | 2021,49(3): 469-475
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硅酸盐学报 | 2021 , 49 (3) : 469 -475
La-Ho掺杂对BiFeO3组织结构形成的影响
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向军淮1 , 柳明凤1, 潘秀红2 , 张明辉2, 刘学超2
作者信息
  • 1.江西科技师范大学,江西省材料表面工程重点实验室,江西 南昌 330013
  • 2.中国科学院上海硅酸盐研究所,上海 200050
通讯作者:
潘秀红(1976—),男,博士,副研究员。
作者简介:

向军淮(1971—),男,博士,教授。

Influence of La-Ho Doping on Microstructure Formation of BiFeO3
Junhuai XIANG1 , Mingfeng LIU1, Xiuhong PAN2 , Minghui ZHANG2, Xuechao LIU2
Affiliations
  • 1.Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, Jiangxi, China
  • 2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Corresponding Author:
    PAN Xiuhong (1976-), male, Ph.D., Associate Professor. E-mail:

    XIANG Junhuai (1971-), male, Ph.D., Professor. E-mail:

出版时间: 2021-03-20 doi: 10.14062/j.issn.0454-5648.20200458
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采用固相合成方法制备了BiFeO3(BFO)、Bi0.8La0.1Ho0.1FeO3(BLHFO)样品,并利用高温偏光显微镜实时观察了样品升温熔化-凝固的动态过程,凝固后的样品通过微焦斑二维衍射仪、扫描电子显微镜及能谱仪分析其物相组成、微观形貌及元素分布。实时观察发现BFO和BLHFO样品升温过程中均呈现边熔化边析出多面体Fe2O3晶粒,并在降温过程中进一步长大的现象。凝固后的SEM扫描显示,在连续的Bi2O3相中夹杂少量几十微米的Fe2O3晶粒,以及大量几微米的BiFeO3晶粒,未掺杂的样品中BiFeO3是无规则的,而La-Ho掺杂的样品中形成了规则立方体形状的BiFeO3晶体。此外,能谱分析还显示,共掺样品中Fe2O3晶粒内只含有La元素,而La和Ho元素可以共掺进入BiFeO3多面体晶粒中。

铁酸铋  /  镧-钬掺杂  /  实时观察  /  氧化铁

BiFeO3 (BFO) and Bi0.8La0.1Ho0.1FeO3 (BLHFO) materials were prepared by a solid-state reaction method. The dynamic process of melting and solidification of the samples was observed in real time by high temperature polarizing microscopy. The phase composition, microstructure and element distribution of the solidified samples were analyzed by X-ray diffraction, scanning electron microscopy and energy dispersive spectrometry. It is indicated that BFO and BLHFO samples both have polyhedral Fe2O3 grains precipitated along with the melting and further grow in the cooling process. Based on the results by SEM, a continuous Bi2O3 phase is mixed with a small amount of micron-sized Fe2O3 grains and a large amount of micron-sized BiFeO3 grains. BiFeO3 grains in the undoped samples are irregular, while La-Ho doped samples form regular cubic BiFeO3 crystals. In addition, Fe2O3 grains in the co-doped sample only contain La element. La and Ho can be co-doped into BiFeO3 polyhedral grains.

bismuth ferrite  /  lanthanum-holmium doping  /  in-situ observation  /  iron oxide
向军淮, 柳明凤, 潘秀红, 张明辉, 刘学超. La-Ho掺杂对BiFeO3组织结构形成的影响. 硅酸盐学报, 2021 , 49 (3) : 469 -475 . DOI: 10.14062/j.issn.0454-5648.20200458
Junhuai XIANG, Mingfeng LIU, Xiuhong PAN, Minghui ZHANG, Xuechao LIU. Influence of La-Ho Doping on Microstructure Formation of BiFeO3[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (3) : 469 -475 . DOI: 10.14062/j.issn.0454-5648.20200458
  • 国家自然科学基金项目(51472263)
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2021年第49卷第3期
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doi: 10.14062/j.issn.0454-5648.20200458
  • 接收时间:2020-06-25
  • 首发时间:2026-10-30
  • 出版时间:2021-03-20
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  • 收稿日期:2020-06-25
  • 修回日期:2020-07-05
基金
国家自然科学基金项目(51472263)
作者信息
    1.江西科技师范大学,江西省材料表面工程重点实验室,江西 南昌 330013
    2.中国科学院上海硅酸盐研究所,上海 200050

通讯作者:

潘秀红(1976—),男,博士,副研究员。
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2种不同金属材料的力学参数
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属
Genus
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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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