Nano Tungsten Oxide Applied for New Energy-saving Glass Coating

Nano tungsten oxide is well-known as it is the most important functional material for producing new energy-saving glass coating with high heat insulation and heat preservation. Well, do you know why nano tungsten oxide can be produced by wire explosion process?

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It is realized that by exploding tungsten conductor in lower pressure of oxygen, unreacted phase of tungsten was present and it could be reduced by increasing the operating pressure and increasing the amount of energy deposited to the exploding conductor. It is realized that the nucleation rate of the particle could be high only at the point of maximum saturation ratio, irrespective of the pressure of the oxygen. The size of the critical nucleus formed is low when the saturation ratio and the nucleation rate are at maximum. The nano metal oxide particle formation by wire explosion process allows one to conclude that the second stage annealing process has a major impact on the final grain size formed. The high speed camera photographs of wire explosion process were used to understand the dynamics of particle formation by wire explosion process. The TEM analysis indicates that the nano tungsten oxide particles are of spherical shape and the analysis of particle size indicates that it follows log normal distribution.

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