氟化镁钡粉体制备方法研究进展

Research Progress on the Preparation Methods of BaMgF_(4) Powders

氟化镁钡(BaMgF_(4))材料不仅拥有铁电性、光学性、多铁性等优良性能,而且作为氟化物,它也具备声子能量低、发光效率高、化学稳定性好等优势,近年来已被广泛用作固态激光材料和稀土离子的发光基质。但是,获得尺寸、形貌合适的纯相纳米级氟化镁钡粉体材料仍然是其制备过程中需要解决的关键问题。本文重点对国内外关于氟化镁钡粉体材料的制备方法进行了总结,从原料、氟化剂、反应条件等方面详细介绍了每种方法在应用过程中不断改进和完善之处,综合比较分析了不同制备工艺的特点和局限性,为今后高性能氟化镁钡粉体材料的制备及应用提供参考。

Barium magnesium fluoride (BaMgF_(4)) materials not only own excellent properties such as ferroelectricity,optical properties,and multiferroic properties,but also,as a fluoride,have the advantages o low phonon energy,high luminous efficiency,and excellent chemical stability.BaMgF_(4) has been widely used as the solid-state laser material and the luminescent matrix of rare earth ions in recent years.However,it has always been a key problem to be solved in the synthesis process to obtain pure phase BaMgF_(4) nanopowders with suitable size and morphology.The various preparation technologies of BaMgF_(4) materials are summarized.In terms of raw materials,fluorinating agents,and reaction conditions,etc.,the continuous improvement and perfection of each method in the application process are introduced in details.The characteristics and limitations of different preparation processes are comprehensively compared and analyzed,and the references for the synthesis and application of high performance BaMgF_(4) materials in the future are also provided.