【摘要】 稀土族金属具有独特的物理和化学性能，稀土金属及其化合物的应用范围极为广泛，涉及航空航天、能源、电子、汽车、建筑、石油化工等多种重要工业领域。经过十余年系统的实验制备和重复性研究，利用数据积累、分析比对和优化评估等途径，建立了国际上首次引入纳米尺度效应的稀土结构和性能数据体系，并发展形成稀土基础数据库。在此基础上，进一步构建了Sm-Co体系稀土化合物基础数据库。稀土金属及其化合物基础数据库包括晶体结构、物理性能、力学性能、磁性能、热力学特性、相稳定性、相变特性等7大类数据，分为传统粗晶和纳米尺度两套体系，纳米体系数据库又包含室温和变温两类数据体系。稀土基础数据库可为目前广泛应用的稀土材料提供丰富数据，并为研究开发新型稀土材料提供参考依据与设计指导。更多还原

【Abstract】 Due to their peculiar physical and chemical properties, the rare-earth elements and compounds have very wide applications, including industrial fields such as aeronautics and astronautics, energy resources, electronics, automobiles, architectures, petrochemical engineering and so on. In the past decade, based on the systematic experiments and repeated experiments, by processes of data accumulation, comparison and evaluation, we have developed the rare-earths database of crystal structures and properties, where for the first time the nanoscale effect on the data was introduced. Further, the database of the Sm-Co compounds has been developed. Both the databases have conventional polycrystalline and nanocrystalline systems for the data search, and the later contains data systems at the room temperature and with the varying temperature. Data of crystal structure, physical properties, magnetic features, mechanical properties, thermodynamic properties, phase stability and phase transformation characteristics, are contained in the database. The database provides the fundamental data for the rare-earth materials, and facilitates the design and development of new type rare-earth materials by serving as the references and quantitative guide.更多还原