中国是世界上稀土储量最多的国家,稀土产业是我国的特色产业.为了解稀土研究的前沿和趋势,本文通过知识计量学方法,以Webof Science数据库中1985 ～2015年发表的学术论文中的作者关键词为知识单元,利用知识图谱分析软件Sci2工具包对稀土研究领域进行知识计量分析.首先,通过关键词共现分析探测稀土研究领域的前沿;其次,通过突现检测分析稀土研究领域的趋势;并结合中国稀土研究的特点,对稀土研究前沿和趋势进行综述.结果表明,中国的发文量在国家/地区中居于首位,中国科学院在相关机构中发文量最多;稀土研究前沿的主题主要有稀土合金和化合物、发光、X射线衍射、磁性、中子衍射、磁性测量以及光致发光等方面;稀土研究趋势的主要突现关键词有稀土化合物、荧光粉等.
China has the biggest reserve of rare earth in the world and rare earth industry has special position in our country.In order to study research fronts and research trend in research area of international rare earth,this paper used knowledgometrics and keywords from publications in 1985 ～2015 from Web of ScienceTM as the knowledge unit to analyze rare earth research area by knowledge mapping tools Sci2 Tool.This paper analyzed research fronts through word co-occurrence analysis,and tried to figure out the research trend through burst detection analysis.The results indicated that China and Chinese Academy Sciences had the most publications in the view of the countries and institutions respectively.The word co-occurrence network by Sci2 Tool showed that the research fronts were about rare earth alloys and compounds,luminescence,X-ray diffraction,magnetic properties,neuron diffraction,magnetic measurements and photoluminescence,etc..The burst detection by Sci2 Tool finds the top word bursted like rare earth compounds and phosphors,etc..
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