Cesium tungsten oxide with the formula of CsxWO3 is mainly made into heat insulation coating with high near-infrared absorption properties. And the transparent coating is often applied to large area glass curtain wall. Due to its high heat-shielding properties, high visible transmittance and environmental protection, CsxWO3 such as Cs0.33WO3 nanopowder is more and more popular with scholars and researchers. Well, do you know what are the effects of ball-milling and ZrO2 beads on Cs0.33WO3 powder?
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It is reported that ball-milling can grind powders with the shear stress to reduce the average particle size of particles and open soft agglomeration effectively. And some experts found that the size of ZrO2 beads had great effects on the secondary particle size of Cs0.33WO3 powders. For example, the original average size of Cs0.33WO3 was 235.2 nm and it was decreased to 196.9 nm after milling 3 h with 5 mm size of ZrO2 bead, while it was decreased to 164.4 nm after milling 3 h with 1 mm size of ZrO2 bead. Obviously, ZrO2 beads with 1 mm size are appropriate for ball-milling to break soft agglomeration and reduce the secondary particle size of Cs0.33WO3 particles.
