What is the effect of porosity on flowability of powder?
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Porosity = (Volume of Voids / Total Volume) x 100%. The second equation uses the total volume and the volume of the solid. Porosity = ( ( Total Volume - Volume of the Solid ) / Total Volume ) x 100%. A larger percentage means that the rock has the ability to hold more water
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A simple definition of powder flowability is the ability of a powder to flow. By this definition, flowability is sometimes thought of as a one-dimensional charac- teristic of a powder, whereby powders can be ranked on a sliding scale from free- flowing to nonflowing.
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