Chemical Engineering Science, 1972, Vol. 27, pp. 425-431. Petgamon Press. Printed in Great Britain Self-preserving size spectra of comminuted particles P. C. KAPUR Department of Metallurgical Engineering, Indian Institute of Technology, I.I.T. Post Office, Kanpur- 16, India (Received 29 March 1971) Abstract-Three pertinent aspects associated with grinding of brittle solids, namely, grinding ...