Explosive Compaction of Ceramic and Metal Powders and Mixtures Thereof.

摘要

A brief survey of the existing indirect methods of explosive compaction of ceramic and metal powders is given. The direct method and the physical laws underlying it are described. The behavior of porous substances under the influence of shock waves is calculated. Theoretical-empirical laws are found which permit hollow and cylindrical bodies compacted uniformly over the cross section to be obtained. It is essential that the parameters of the explosive are adapted to the properties of the ceramic or metal powder to be compacted. Alumina, zirconia, boron carbide, titanium carbide, tungsten, and steel powders and their mixtures are compacted to densities to greater than 95 percent of the theoretical value. Possibilities of obtaining geometrically shaped bodies by explosive powder metallurgy are also shown. 13 figures, 18 references.