Nano cesium tungsten oxide may be used to prepare nano-ceramic color master. Thus, this type of color master has a lot of advantages as follows:
1. With extremely high gloss and coloring power;
2. May maintain the chemical stability of pigments and other additives;
3. Uniformly dispersed in the ceramic products;
4. Easy to operate;
5. Protect environment from polluting;
6. With nice light resistance, it is suitable for outdoor applications.
A Method for Preparing Nano Cesium Tungsten Oxide
Use WO3?HN3 and salt of the metal element (Cs) to be doped as raw materials. Dissolve the raw materials in water, respectively, to obtain their aqueous solutions. Mix the obtained aqueous solutions uniformly, dried at a temperature of 130°C for several hours to obtain the dry powder. The powder was then calcined for the first time. In the first calcination, the powder was heated to 550°C in a 95:5 volume ratio of hydrogen to nitrogen and calcined for one hour. Then, the secondary calcination was performed in a nitrogen atmosphere at 800°C. And calcination was also performed for one hour to obtain the final product --- cesium tungsten oxide powder.
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