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- W935246802 abstract "用共沉淀-高温固相复合法制备了(La,Ce,Tb)PO4荧光粉。通过发光性能、粒度和SEM测试,研究了不同碱金属碳酸盐助熔剂及其用量对荧光粉的粒度、亮度、颗粒形貌、热稳定性等的影响。结果表明在荧光粉中加入助熔剂Li2CO3,Na2CO3,K2CO3后,荧光粉的粒径(D50)均有不同程度增大,且使得荧光粉前躯体众多小晶粒长成了单一的大尺寸的颗粒;随着助熔剂含量的增加,荧光粉的粒径(D50)逐渐增大,添加助熔剂后,荧光粉的亮度有不同程度的提高,添加0.6%的Li2CO3亮度达到最大值,继续增加,亮度降低;分别添加0.3%,0.9%的Na2CO3,Na2CO3,亮度值达到最大。此外,添加碱金属碳酸盐助熔剂能有效改善荧光粉的热稳定性,其中添加Li2CO3的荧光粉的热稳定性最好,Na2CO3的次之,K2CO3的最差。" @default.
- W935246802 created "2016-06-24" @default.
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- W935246802 date "2010-01-01" @default.
- W935246802 modified "2023-09-24" @default.
- W935246802 title "碱金属碳酸盐助熔剂对绿色荧光粉(La,Ce,Tb)PO_4性能的影响" @default.
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