固相-熔盐法非平衡骤热骤冷工艺制备高纯BiFeO 3 及性能
Source abstract
Abstract
采用固相–熔盐法非平衡骤热骤冷工艺(SSR-MSS-SHCN)制得粒径分布均匀、高纯度的BiFeO 3 粉体。通过XRD、FT-IR、TG-DSC、VSM及SEM等对样品物相结构、性能及形貌进行表征。结果表明, 骤热骤冷的非平衡工艺更有利于提高BiFeO 3 纯度。单一的固相法或熔盐法采用骤热骤冷非平衡工艺合成的产物均含有Bi 25 FeO 39 和/或Bi 2 Fe 4 O 9 杂相。固相–熔盐法骤热骤冷非平衡工艺制得了几近单相的高纯度BiFeO 3 粉体。高纯度BiFeO 3 粉体磁性能室温呈反铁磁性, 而低温呈弱铁磁性和/或超顺磁性, 而非自旋玻璃态。
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Multiferroics and related materials · Magnetic Properties and Applications · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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