Patent ID: 8287622

Claim:
A method for making an aluminum-based composite material, the method comprises the steps of: S 10 , making a semi-solid-state aluminum-based material with a predetermined viscosity capable of absorbing at least one nanoscale reinforcement uniformly within the semi-solid aluminum-base material; S 20 , dispersing the at least one nanoscale reinforcement uniformly into the semi-solid-state aluminum-based material; S 20 . 1 , assisting absorption of the at least one nanoscale reinforcement into the semi-solid-state aluminum-based material by stirring the semi-solid-state mixture at a controlled speed during the dispersing; S 20 . 2 , obtaining a semi-solid-state mixture of the at least one nanoscale reinforcement uniformly dispersed in and completely absorbed by the semi-solid-state aluminum-based material; S 30 , heating the mixture in semi-solid state to a liquid state; S 40 , ultrasonically processing the mixture in liquid state; and S 50 , cooling the mixture in liquid state.