Article(id=1314907999643205879, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2026.02.020, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1762012800000, receivedDateStr=2025-11-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791428096923, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791428096923, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791428096923, creator=13701087609, updateTime=1791428096923, updator=13701087609, issue=Issue{id=1314907832038810534, tenantId=1146029695717560320, journalId=1235980550691926019, year='2026', volume='46', issue='2', pageStart='1', pageEnd='214', issueExtLink='null', onlineDate='null', pubDate='1774972800000', pubDateStr='2026-04-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791428056964, creator='13701087609', updateTime=1791430468655, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314917947500486818, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314917947500486819, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=129, endPage=132, ext={EN=ArticleExt(id=1314908002298200315, articleId=1314907999643205879, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Grain Growth Kinetics of Pyrochlore Derived from Fersmite, columnId=1236276106727321817, journalTitle=Mining and Metallurgical Engineering, columnName=METALLURGY, runingTitle=null, highlight=null, articleAbstract=

The grain growth kinetics of the conversion from fersmite to pyrochlore during high-temperature sintering process was investigated. The results show that the conversion rate of fersmite increases with rising sintering temperature, and the pyrochlore content reaches 96.07% at 760 ℃. At the temperature within the range of 760-880 ℃, the average grain size of pyrochlore increases with the extension of holding time at the same sintering temperature and also increases with the rising of sintering temperature at the same holding time. The grain growth exponents within this temperature range are all greater than 3, presenting a three-dimensional grain growth characteristic. The apparent activation energy of grain growth decreases with rising temperature, making it easier for grain to grow. At the same sintering temperature, the apparent activation energy of grains increases with the extension of holding time, indicating that it is more difficult for grains to grow after the holding time is prolonged. It is concluded that grain growth can be reliably promoted by appropriately increasing the sintering temperature or adding modifiers rather than by merely extending holding time.

, authors=Xiang LU, Wensheng HAN, Mengjie RAN, Wen CHEN, authorsList=Xiang LU, Wensheng HAN, Mengjie RAN, Wen CHEN, authorCompany=null, correspAuthors=Wen CHEN, 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=1314908002986066173, articleId=1314907999643205879, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=铌钙矿转化为烧绿石的晶粒生长动力学, columnId=1236276107322913000, journalTitle=矿冶工程杂志, columnName=冶金, runingTitle=null, highlight=null, articleAbstract=

研究了高温烧结过程中铌钙矿向烧绿石转化的晶粒生长动力学。结果表明，铌钙矿转化率随着烧结温度升高而增大，760 ℃时烧绿石含量达到96.07%。在760~880 ℃范围内，相同烧结温度下，烧绿石平均晶粒尺寸随着保温时间延长而增大，相同保温时间下，其平均晶粒尺寸随着烧结温度升高而增大，该温度区间晶粒生长指数均大于3，呈三维生长特征。晶粒生长表观活化能随着温度升高而降低，晶粒更易生长；相同烧结温度下，晶粒表观活化能随着保温时间延长而增大，表明保温时间越长晶粒越难继续生长。仅通过延长保温时间难以促进晶粒生长，适当提高烧结温度或添加调整剂，是促进晶粒生长的可靠手段。

, authors=卢翔, 韩文生, 冉孟杰, 陈雯, authorsList=卢翔, 韩文生, 冉孟杰, 陈雯, authorCompany=null, correspAuthors=陈雯, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=V62amzSdTABEP5A5ZNeEyw==, magXml=A3s4zg3jmKSQTBzNCxUNTA==, pdfUrl=null, pdf=ExHkIvpq8Y0+Ythtgdu5ig==, pdfFileSize=2539570, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=ph2GyE7EhXXdIpIISACamA==, mapNumber=null, fund=null)}, authors=[Author(id=1314908003464216834, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907999643205879, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lakers198787@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314908003602628868, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907999643205879, authorId=1314908003464216834, language=EN, stringName=Xiang LU, firstName=Xiang, middleName=null, lastName=LU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Changsha Research Institute of Mining and Metallurgy, Co., Ltd., Changsha 410012, Hunan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314908003699097861, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907999643205879, authorId=1314908003464216834, language=CN, stringName=卢翔, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=长沙矿冶研究院有限责任公司，湖南 长沙 410012, bio={"content":"

卢翔（1987-），男，湖南岳阳人，博士，高级工程师，主要研究方向为铌资源选冶联合技术、冶金物理化学以及固废资源综合利用。E-mail：lakers198787@126.com

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卢翔（1987-），男，湖南岳阳人，博士，高级工程师，主要研究方向为铌资源选冶联合技术、冶金物理化学以及固废资源综合利用。E-mail：lakers198787@126.com

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