| abstract |
A MECHANICALLY ALLOYED COMPOSITE POWDER WHEREIN INDIVIDUAL PARTICLES INCLUDE AN LUMINUM MATRIX HAVING EQUIAZED ALUMINUM OXIDE DISPERSOID PARTICLES HAVING A SIZE OF ABOUT 100 A. TO 2,000 A. UNIFORMLY DISTRIBUTED THERETHROUGH AT PARTICLE SPACINGS OF ABOUT 500 TO 3,000 A. PRODUCTS MADE BY CONSOLIDATING THE MECHANICALLYY ALLOYED POWDER EXHIBIT IMPROVED STRENGTH PROPERTIES AT RELATIVELY LOW DISPERSOID CONTENTS. A PROCESS FOR PRODUCING SUCH MECHANICALLY ALLOYED COMPOSITE POSDER INCLUDING MILLING UNDER DRY CONDITIONS AND IN THE PRESENCE OF A SURFACTIVE AGENT, PREFERABLY A VOLATILIZABLE ORGANIC MATERIAL. |