Supermicro tungsten powder is a kind of tungsten powder with fine grain size. It has the advantages of uniform structure and good plasticity, and is usually prepared by ultrasonic spray drying method.
There are many methods for preparing ultrafine tungsten powder, and spray drying is an important one. The preparation of precursor powder by spray drying method has many advantages, such as simple process, no pollution, uniform composition, etc., suitable for mass production.
Spray drying method which is also called thermal chemical synthesis method, it is the solution atomization for superfine particle by physical means of a combination of chemical and physical method, the process including the original solution preparation and mixing, solution mixing, spray drying and subsequent processing stages.
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