The Crushing and Sieving of Glass to Ensure Control of the Surface of the Grains

JSGT 1936 V20 T384-T404

 The properties of glasses are statistical. The average grain volume does not depend on the composition or thermal history of the glass, and the average surface per unit volume of glass may be characterised by the optical shadow surface or by chemical methods. The average grain volume and surface are determined by mesh size and form factors. The latter depend on the form of the glass, the crushing process, the kind and duration of the sieving, errors of the sieves, the average mesh size and the roughness of the surface due to stress or grain friction.  These effects are demonstrated numerically.

Edwin Berger