Cesium Tungstate Nanopowder Applied for Ceramic Microsphere

Cesium tungstate nanopowder may be applied for producing ceramic microsphere, which is used for toughening and strengthening of ceramics and plastics as well as fireproof coatings. In other words, such material can improve the wear resistance and fracture toughness of these products.

Therefore, with the popularization of this new type of nano ceramic particles, nano cesium tungstate plays a more important role. And therefore, the preparation of cesium tungstate is also more important. In this regard, experts have proposed a preparation method of nano cesium tungstate powder, which mainly includes the following steps:

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1.0 The reaction amount of ammonium metatungstate and cesium nitrate was dissolved in a solvent methanol. The solution was dried to obtain a powder, and the obtained powder was further pulverized to obtain a mixed powder of tungsten and cesium. The pulverization may be carried out by mechanical pulverization; the drying may be carried out by freeze drying.

2.0 The tungsten and cesium mixed powder was placed in a closed reaction vessel with stirring, and sorbic acid as a reaction solvent was added thereto, and the reaction was performed at 310°C for 3 hours, and the mass of the reaction solvent was 2.8 times the mass of a mixed powder of tungsten and cesium;

3.0 The reaction product in step 2.0 is separated and washed with deionized water or ethanol, dried, and pulverized by a jet mill to obtain nano cesium tungstate.

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