利用熔盐体系营造的低重力、低粘度液相环境，有效降低了反应的离子迁移能垒，促使荧光粉的晶粒生长速率远大于形核速率，有效促进一次晶粒的生长，D50从8 μm增加至20 μm。

The low gravity and low viscosity liquid phase environment created by the molten salt system effectively reduces the ion migration energy barrier of the reaction, promotes the grain growth rate of the phosphor to be much greater than the nucleation rate, and effectively promotes the growth of primary grains, D50 from 8 μ M increased to 20 μ m。