Pr掺杂量对镨锆黄陶瓷颜料性能的影响

以氯氧化锆、正硅酸乙酯为主要原料,氧化镨作为着色剂,采用溶剂热法制备镨锆黄陶瓷颜料前驱体,经1050℃煅烧得到镨锆黄陶瓷颜料,考察镨掺杂量对该颜料呈色的影响.采用扫描电镜和X射线衍射仪对样品的显微结构进行分析,样品性能采用色度分析、粒度分析和紫外-可见光光谱分析仪测试.实验结果表明:相对于其它掺镨样品,当镨掺杂含量为0.15 g,样品的ZrSiO4结晶度较高且Pr4+固溶到ZrSiO4晶格中,颗粒尺寸分布较小且较均匀,使样品在400~480 nm对蓝紫光有非常强的吸收,样品呈现较纯正的黄色色调.

Effect of Pr-doping Content on the Properties of Pr-ZrSiO4 Yellow Pigment

Zirconium praseodymium yellow ceramic pigment precursor was solvothermal prepared by using zirconium silicate and tetraethyl orthosilicate as the main raw material and praseodymium oxide as the color agent, and then was obtained by calcining at 1050 ℃.Effects of the Pr-doping contents on the properties of the samples were studied .The microstructure of the samples were characterized by scanning electron microscope and X-ray diffract pattern .The properties of the samples were analyzed by the colorimetric analysis instrument , particle-size analyzer and ultraviolet visible light spectrum analyzer .The results show that compared with other samples , the sample prepared with 0 .15 g Pr-doping has the higher crystallinity , smaller and more uniform particle size , resulting in the stronger absorption of blue and purple light at 400-480 nm and thus exhibits a pure yellow hue .