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crushing powders for mixing 1

Abstract. An inexpensive way to reduce granular samples of ash to a fine powder 75150 particle size has been developed by modifying a device suggested by Dutton. 1 A piece of 20-mil tungsten wire, formed into a spiral in the shape of a cocoon around a 38-in. tungsten carbide ball see Fig. 1, is placed with the sample in a plastic vial with a polyethylene cap and agitated on a mixer ...