【摘要】 综述了目前常用的制备高性能镁铝尖晶石粉体的各种方法的工艺过程、特点及其产物的性能特征。分析指出,纯度和粒度是粉体最重要的两个性能指标;降低合成温度、简化工艺过程是今后制备技术发展的趋势;金属醇盐可能成为获得高纯度产物最有应用前景的前驱物;水热处理、溶剂蒸发、超临界干燥等物理手段是解决粒度最有效的途径。更多还原

【Abstract】 The processes and characteristics of the techniques preparing magnesium aluminate spinel powders as well as their product properties were introduced.It is shown that purity and particle size distribution are the two most important indexes of MgAl₂O₄ spinel powders.The trend of the preparation technologies is to lower synthesis temperature and simplify the process.Metal alkoxides may be the most potential precursors.Hydrothermal method,evaporation technique,supercritical drying,etc.may be the most effective routes.更多还原