Article(id=1319986884265226823, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210451, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1622736000000, receivedDateStr=2021-06-04, revisedDate=1625241600000, revisedDateStr=2021-07-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1792638997378, onlineDateStr=2026-10-22, pubDate=1652976000000, pubDateStr=2022-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792638997378, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792638997378, creator=13701087609, updateTime=1792638997378, updator=13701087609, issue=Issue{id=1319986871980118160, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='5', pageStart='1201', pageEnd='1454', issueExtLink='null', onlineDate='null', pubDate='1652976000000', pubDateStr='2022-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792638994450, creator='13701087609', updateTime=1792639285419, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319988092451275233, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319988092451275234, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1292, endPage=1300, ext={EN=ArticleExt(id=1319986884944704072, articleId=1319986884265226823, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Microstructure and Kinetics of Intermediate Crystallization State of Amorphous Nb2O5, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

Nb2O5 has a variety of crystalline states. However, the intermediate process of forming a long-range ordered structure is still unclear. Nb2O5 precursor was prepared by a sol-gel method. The intermediate-state samples in the crystallization of amorphous Nb2O5 were obtained at 460 ℃-520 ℃. The crystal structure, morphology, pore structure and crystallization kinetics of the intermediate-state samples were investigated. The results show that the atomic ordering process of the sample is from 1.0 nm short-range order with an amorphous state, to 1.0 nm short-range order with a small amount of crystal and amorphous mixed state, to 1.5 nm medium-range order with a pseudo hexagonal and amorphous mixed state, and then to more than 2.0 nm long-range order with a pseudo hexagonal, orthorhombic and a small amount of amorphous mixed state. The crystallinity of the samples at >495 ℃ increases rapidly from 20% to 86%. The samples are formed due to the crisscross accumulation of massive flaky particles and a small amount of rod-shaped particles. From a short-range order to a long-range order, the growth process of flake particles is the main process, while the rod-shaped particles have little change. The particles are mesoporous, and the size of the main pore becomes 10 nm as the calcination temperature increases. The Avrami index (n) of the samples is 1-2, and the main nucleation mode is the surface nucleation. During the transformation from short program to medium program, there exists a crystallization incubation period. This study provides a working basis for the investigation of Nb2O5 crystallization intermediate state.

, authors=Xingmei SHEN1, 2, Zongjian ZHU1, Zhiyuan XU2, Xingrong WU1, Fabin CAO1, Liaosha LI1, authorsList=Xingmei SHEN, Zongjian ZHU, Zhiyuan XU, Xingrong WU, Fabin CAO, Liaosha LI, authorCompany=null, correspAuthors=null, authorNote=

SHEN Xingmei (1982-), female, Ph.D., Associate Professor. E-mail:

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Nb2O5有多种晶态,其形成长程有序结构的中间过程却不清楚。采用溶胶-凝胶法制备了Nb2O5前驱体,460~520 ℃煅烧得到非晶Nb2O5晶化中间态样品,研究了其晶体结构、形貌结构、孔结构和晶化动力学。结果表明:样品的原子有序化过程是从1.0 nm短程序的非晶态到1.0 nm短程序的少量晶体、非晶混合态,再到1.5 nm中程序的伪六方、非晶混合态,再到大于2.0 nm长程序的伪六方、正交、少量非晶混合态。煅烧温度大于495 ℃时,样品结晶度增长迅速,从20%增至86%。样品颗粒由大量片状和少量棒状结构交错堆积而成;从短程序到长程序转变阶段,主要是片状颗粒的生长过程,棒状颗粒没有明显变化。样品颗粒为介孔结构,随着煅烧温度的升高,逐渐以10 nm孔为主。样品Avrami指数n=1~2,主要形核方式是表面形核;且短程序向中程序转化阶段,存在晶化孕育期。以此,为Nb2O5晶化中间态的研究提供工作基础,从而开拓新的研究方向。

, authors=申星梅1, 2, 朱宗建1, 徐致远2, 武杏荣1, 曹发斌1, 李辽沙1, authorsList=申星梅, 朱宗建, 徐致远, 武杏荣, 曹发斌, 李辽沙, authorCompany=null, correspAuthors=null, authorNote=

申星梅(1982—),女,博士,副教授。

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非晶Nb2O5晶化中间态的微观结构及晶化动力学
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申星梅 1, 2 , 朱宗建 1 , 徐致远 2 , 武杏荣 1 , 曹发斌 1 , 李辽沙 1
硅酸盐学报 | 研究论文 2022,50(5): 1292-1300
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硅酸盐学报 |研究论文 2022 , 50 (5) : 1292 -1300
非晶Nb2O5晶化中间态的微观结构及晶化动力学
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申星梅1, 2 , 朱宗建1, 徐致远2, 武杏荣1, 曹发斌1, 李辽沙1
作者信息
  • 1.安徽工业大学教育部冶金减排与资源综合利用重点实验室,安徽 马鞍山 243002
  • 2.安徽工业大学冶金工程与资源综合利用安徽省重点实验室,安徽 马鞍山 243002
作者简介:

申星梅(1982—),女,博士,副教授。

Microstructure and Kinetics of Intermediate Crystallization State of Amorphous Nb2O5
Xingmei SHEN1, 2 , Zongjian ZHU1, Zhiyuan XU2, Xingrong WU1, Fabin CAO1, Liaosha LI1
Affiliations
  • 1.Key Laboratory of Metallurgical Emission Reduction & Resources Recycling of Ministry of Education, Anhui University of Technology, Maanshan 243002, Anhui, China
  • 2.AnHui Province Key Laboratory of Metallurgy Engineering & Resources Recycling, Anhui University of Technology, Maanshan 243002, Anhui, China
  • SHEN Xingmei (1982-), female, Ph.D., Associate Professor. E-mail:

出版时间: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210451
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Nb2O5有多种晶态,其形成长程有序结构的中间过程却不清楚。采用溶胶-凝胶法制备了Nb2O5前驱体,460~520 ℃煅烧得到非晶Nb2O5晶化中间态样品,研究了其晶体结构、形貌结构、孔结构和晶化动力学。结果表明:样品的原子有序化过程是从1.0 nm短程序的非晶态到1.0 nm短程序的少量晶体、非晶混合态,再到1.5 nm中程序的伪六方、非晶混合态,再到大于2.0 nm长程序的伪六方、正交、少量非晶混合态。煅烧温度大于495 ℃时,样品结晶度增长迅速,从20%增至86%。样品颗粒由大量片状和少量棒状结构交错堆积而成;从短程序到长程序转变阶段,主要是片状颗粒的生长过程,棒状颗粒没有明显变化。样品颗粒为介孔结构,随着煅烧温度的升高,逐渐以10 nm孔为主。样品Avrami指数n=1~2,主要形核方式是表面形核;且短程序向中程序转化阶段,存在晶化孕育期。以此,为Nb2O5晶化中间态的研究提供工作基础,从而开拓新的研究方向。

五氧化二铌  /  溶胶-凝胶  /  微观结构  /  晶化动力学

Nb2O5 has a variety of crystalline states. However, the intermediate process of forming a long-range ordered structure is still unclear. Nb2O5 precursor was prepared by a sol-gel method. The intermediate-state samples in the crystallization of amorphous Nb2O5 were obtained at 460 ℃-520 ℃. The crystal structure, morphology, pore structure and crystallization kinetics of the intermediate-state samples were investigated. The results show that the atomic ordering process of the sample is from 1.0 nm short-range order with an amorphous state, to 1.0 nm short-range order with a small amount of crystal and amorphous mixed state, to 1.5 nm medium-range order with a pseudo hexagonal and amorphous mixed state, and then to more than 2.0 nm long-range order with a pseudo hexagonal, orthorhombic and a small amount of amorphous mixed state. The crystallinity of the samples at >495 ℃ increases rapidly from 20% to 86%. The samples are formed due to the crisscross accumulation of massive flaky particles and a small amount of rod-shaped particles. From a short-range order to a long-range order, the growth process of flake particles is the main process, while the rod-shaped particles have little change. The particles are mesoporous, and the size of the main pore becomes 10 nm as the calcination temperature increases. The Avrami index (n) of the samples is 1-2, and the main nucleation mode is the surface nucleation. During the transformation from short program to medium program, there exists a crystallization incubation period. This study provides a working basis for the investigation of Nb2O5 crystallization intermediate state.

niobium pentoxide  /  sol-gel  /  microstructure  /  crystallization kinetics
申星梅, 朱宗建, 徐致远, 武杏荣, 曹发斌, 李辽沙. 非晶Nb2O5晶化中间态的微观结构及晶化动力学. 硅酸盐学报, 2022 , 50 (5) : 1292 -1300 . DOI: 10.14062/j.issn.0454-5648.20210451
Xingmei SHEN, Zongjian ZHU, Zhiyuan XU, Xingrong WU, Fabin CAO, Liaosha LI. Microstructure and Kinetics of Intermediate Crystallization State of Amorphous Nb2O5[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1292 -1300 . DOI: 10.14062/j.issn.0454-5648.20210451
  • 国家自然科学基金(51302003)
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doi: 10.14062/j.issn.0454-5648.20210451
  • 接收时间:2021-06-04
  • 首发时间:2026-10-22
  • 出版时间:2022-05-20
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  • 收稿日期:2021-06-04
  • 修回日期:2021-07-03
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国家自然科学基金(51302003)
作者信息
    1.安徽工业大学教育部冶金减排与资源综合利用重点实验室,安徽 马鞍山 243002
    2.安徽工业大学冶金工程与资源综合利用安徽省重点实验室,安徽 马鞍山 243002
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2种不同金属材料的力学参数
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属数
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genus
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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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