摘要：以氯化锶和碳酸钠为原料,采用共沉淀法通过添加晶形控制剂YH-1制备出了晶形近于完美的球状超细碳酸锶粉体,利用SEM和XRD对其进行了表征。结果表明:当YH-1的用量为100%时,所制备的球状碳酸锶粒子平均粒径约为0.8μm且具有结晶完整、粒度均匀和分散性良好等优点,分析认为这可能是由于YH-1对构晶阳离子Sr²⁺的均匀性包裹而造成的。

关键词： 共沉淀法；碳酸锶；机理

Abstract: Using SrCl₂ and Na₂CO₃ as raw materials, through adding suitable chemical additives for cystalline control, the spherical ultrafine strontium carbonates were prepared by coprecipitation method. The powder was characterized by SEM and XRD. The results show that the average radius of the particles is about 0.8 "m and the particles have the qualities of integrated crystal, well-proportioned granularity and good dispersion etc. It can be used as the material to produce high quality electronics ceramic. It is considered that the result is caused by the chemical additives for crystalline control wrapping Sr²⁺ evenly. 

Keywords: coprecipitation;strontium carbonate; mechanism