Article(id=1323358147150230019, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358104632570190, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1030982400000, receivedDateStr=2002-09-03, revisedDate=1037289600000, revisedDateStr=2002-11-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1793442769085, onlineDateStr=2026-10-31, pubDate=1062691200000, pubDateStr=2003-09-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793442769085, onlineIssueDateStr=2026-10-31, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793442769085, creator=13701087609, updateTime=1793442769085, updator=13701087609, issue=Issue{id=1323358104632570190, tenantId=1146029695717560320, journalId=1255847867265597444, year='2003', volume='17', issue='3', pageStart='161', pageEnd='240', issueExtLink='null', onlineDate='null', pubDate='1062691200000', pubDateStr='2003-09-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793442758949, creator='13701087609', updateTime=1793442847375, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1323358475585204938, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358104632570190, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1323358475585204939, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358104632570190, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=187, endPage=192, ext={EN=ArticleExt(id=1323358147536105988, articleId=1323358147150230019, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Synthesis and Characterization of KNb1-xTixO3-δ Solid Solutions, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

KNb1-xTixO3-δ (x=0~0.40) solid solutions were synthesized under high temperature and high pressure for the first time. The structural characteristics and ionic conductivity of KNb1-x·TixO3-δ solid solutions were investigated by XRD, TG-DTA, Raman and impedance spectroscopy techniques. XRD results showed that Ti-doping resulted in structural transformation, the samples of x<0.15 have orthorhombic perovskite structure, but the samples of x≥0.15 are single tetragonal phase. With the increase of doping amount, the cell volume decrease. The Raman spectra at different temperatures and DTA curve indicate that the structure of the solid solutions had been changed, Ti-doping broadens tetragonal phase zone, and curie temperature decrease with the increase of dopant content. The ionic conductivity of the samples measured by impedance spectroscopy shows that in all the samples the ions are main carriers. KNb0.85Ti0.15O2.925 has the highest conductivity of 5.6×10-3 S·cm-1 at 800 ℃. A marked curvature at T=630 ℃ has been observed in the Arrhenius plot of the bulk conductivity. The activation energy below 630 ℃ is lower than that above 630 ℃, and the cause is discussed.

, authors=Jun XIANG1, Li-Ping LI2, authorsList=Jun XIANG, Li-Ping LI, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, 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=1323358148056199685, articleId=1323358147150230019, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=KNb1-xTixO3-δ固溶体的合成与表征, columnId=null, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

利用高温高压法首次合成了KNb1-xTixO3-δ(x=0~0.4)系列固溶体,并使用X射线衍射、TG-DTA、Raman谱和交流阻抗谱等对样品的结构、热稳定性和导电性进行了表征。XRD结果表明,随掺杂量的增加,晶胞体积减小;Ti掺杂引起了固溶体结构的转变,x<0.15的样品为正交钙钛矿结构,而x≥0.15的样品几乎为纯四方相结构。Raman谱和DTA结果显示,Ti掺杂使四方相区宽化,并且随掺杂量的增加,相变温度逐渐下降。阻抗谱测量表明,所有样品均以离子导电为主,其中KNb0.85Ti0.15O2.925的氧离子导电率最高,在800 ℃时达到5.6×10-3 S·cm-1,在测量温度范围内,电导率可以拟合成两条直线,低温活化能小于高温活化能。

, authors=向军1, 李莉萍2, authorsList=向军, 李莉萍, authorCompany=null, correspAuthors=null, authorNote=

向军(1974—),男,硕士.

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向军(1974—),男,硕士.

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KNb1-xTixO3-δ固溶体的合成与表征
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向军 1 , 李莉萍 2
高压物理学报 | 2003,17(3): 187-192
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高压物理学报 | 2003 , 17 (3) : 187 -192
KNb1-xTixO3-δ固溶体的合成与表征
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向军1, 李莉萍2
作者信息
  • 1.华东船舶工业学院数理系,江苏 镇江 212003
  • 2.吉林大学物理系,吉林 长春 130023
作者简介:

向军(1974—),男,硕士.

Synthesis and Characterization of KNb1-xTixO3-δ Solid Solutions
Jun XIANG1, Li-Ping LI2
Affiliations
  • 1.Department of Mathematics and Physics, East China Shipbuilding Institute, Zhenjiang 212003, China
  • 2.Department of Physics, Jilin University, Changchun 130023, China
出版时间: 2003-09-05
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利用高温高压法首次合成了KNb1-xTixO3-δ(x=0~0.4)系列固溶体,并使用X射线衍射、TG-DTA、Raman谱和交流阻抗谱等对样品的结构、热稳定性和导电性进行了表征。XRD结果表明,随掺杂量的增加,晶胞体积减小;Ti掺杂引起了固溶体结构的转变,x<0.15的样品为正交钙钛矿结构,而x≥0.15的样品几乎为纯四方相结构。Raman谱和DTA结果显示,Ti掺杂使四方相区宽化,并且随掺杂量的增加,相变温度逐渐下降。阻抗谱测量表明,所有样品均以离子导电为主,其中KNb0.85Ti0.15O2.925的氧离子导电率最高,在800 ℃时达到5.6×10-3 S·cm-1,在测量温度范围内,电导率可以拟合成两条直线,低温活化能小于高温活化能。

KNb1-xTixO3-δ  /  高温高压  /  氧离子导体  /  结构相变

KNb1-xTixO3-δ (x=0~0.40) solid solutions were synthesized under high temperature and high pressure for the first time. The structural characteristics and ionic conductivity of KNb1-x·TixO3-δ solid solutions were investigated by XRD, TG-DTA, Raman and impedance spectroscopy techniques. XRD results showed that Ti-doping resulted in structural transformation, the samples of x<0.15 have orthorhombic perovskite structure, but the samples of x≥0.15 are single tetragonal phase. With the increase of doping amount, the cell volume decrease. The Raman spectra at different temperatures and DTA curve indicate that the structure of the solid solutions had been changed, Ti-doping broadens tetragonal phase zone, and curie temperature decrease with the increase of dopant content. The ionic conductivity of the samples measured by impedance spectroscopy shows that in all the samples the ions are main carriers. KNb0.85Ti0.15O2.925 has the highest conductivity of 5.6×10-3 S·cm-1 at 800 ℃. A marked curvature at T=630 ℃ has been observed in the Arrhenius plot of the bulk conductivity. The activation energy below 630 ℃ is lower than that above 630 ℃, and the cause is discussed.

KNb1-xTixO3-δ  /  high-temperature and high-pressure  /  oxide ionic conductor  /  structural transformation
向军, 李莉萍. KNb1-xTixO3-δ固溶体的合成与表征. 高压物理学报, 2003 , 17 (3) : 187 -192 .
Jun XIANG, Li-Ping LI. Synthesis and Characterization of KNb1-xTixO3-δ Solid Solutions[J]. Chinese Journal of High Pressure Physics, 2003 , 17 (3) : 187 -192 .
  • 江苏省高校自然科学研究计划项目资助(01KJD140001)
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2003年第17卷第3期
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  • 接收时间:2002-09-03
  • 首发时间:2026-10-31
  • 出版时间:2003-09-05
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出版历史
  • 收稿日期:2002-09-03
  • 修回日期:2002-11-15
基金
江苏省高校自然科学研究计划项目资助(01KJD140001)
作者信息
    1.华东船舶工业学院数理系,江苏 镇江 212003
    2.吉林大学物理系,吉林 长春 130023
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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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