| abstract |
An aluminum-based composite comprising an aluminum or aluminumalloy matrix and finely divided particles of an inorganic wearresistant material, i.e., ceramic, dispersed in the matrix, such particles consisting of a mixture of coarse particles of about 20 Mu to 100 Mu in diameter and fine particles of about 0.5 Mu to 9 Mu in diameter in a ratio of 1.5-4:1 in volume and exceeding 50% of the total volume of the composite. |