本文运用科学计量学中的可视化技术,以CNKI数据库中收录的2000-2016年发表于SCI和EI类期刊中以稀土为研究主题的5926篇论文为数据基础,运用Cite SpaceⅢ和Ucinet这两款可视化软件绘制关键词共现图谱并进行分析。Cite SpaceⅢ分析结果展现了稀土领域的地球化学和显微组织等研究热点,关键词聚类图谱得出了4大知识群,突现词分析表明了稀土研究前沿演进历程。Ucinet分析展现了与稀土有关的金属学与金属工艺、化学、地质学等重要学科领域的研究重点。
This paper takes visualizing techniques in scientometrics to make co-word analysis and visualize knowledge mappings based on 5926 papers published in CNKI from 2000-2016. The papers were published in SCI and El journals and the analysis are based on CiteSpace Ⅲ and Ucinet. The results based on CiteSpace Ⅲ demonstrate the research hotspot of geo- chemistry and microstructural, keywords cluster mapping obtain 4 knowledge groups, the analysis of burst keywords indicate the evolutionary path of research front in rare earth research. The analysis based on Ucinet reveal the research emphasis in the subject field related to rare earth, such as metallography and smitheraft, chemistry and geology.