Discussion on "Powder metallurgy" at the Coventry Section of the Institution

MB. A. W. BTJCKLAND : Mr. Chairman, Dr. Jones, this is a subject on which I am very much at sea, so I stand a good chance of displaying a considerable amount of ignorance. While Dr. Jones gave us a lot of data concerning the production of those specimens after he got his powders, I am still a little in the dark as to how he would produce his powders. I wondered whether it is a balling process, or just in what manner it is carried out ? Associated with that, Dr. Jones also made the point that powder metallurgy shows a good prospect of saving metal, and that brings me back to the same point again¿is there any great waste in the production of the powders ? I should have expected that quite an amount of powder would have been produced below the grain size at which he was attempting to make his powder.