Abstract: A carbon nano reinforced aluminum matrix conductive composite and a preparation method thereof are provided. In the preparation method, nano silicon dioxide chemically grows on the surface of graphene oxide, reduced graphene oxide@silicon dioxide carbon nano powder is prepared and reduced in the process of high-temperature sintering, and the mixed powder is blown into a melt using an inert gas, and then stirred, purified and cast.

Abstract: A preparation method of a high-strength and high-toughness A356.2 metal matrix composites for a hub is provided, including the following preparation process steps: preparation of a (graphene+HfB2)-aluminum master alloy wire; A356.2 alloy melting, master alloy addition, refining, and pressure casting; solution and aging treatment; shot blasting, finishing, alkaline/acid cleaning, anodic oxidation, and finished product packaging. In this way, two systems of two-dimensional nano-structure graphene nucleation and in-situ self-nucleation are introduced to complement each other, a second phase of silicon in A356.2 is refined by multi-dimensional scaling, and multi-dimensional nano-phases strengthen the aluminum-based composite material simultaneously. The preparation method solves the problems of limiting the strength, hardness, plasticity and toughness during the application of common A356.

Abstract: A preparation method of a high-strength and high-toughness A356.2 metal matrix composites for a hub is provided, including the following preparation process steps: preparation of a (graphene+HfB2)-aluminum master alloy wire; A356.2 alloy melting, master alloy addition, refining, and pressure casting; solution and aging treatment; shot blasting, finishing, alkaline/acid cleaning, anodic oxidation, and finished product packaging. In this way, two systems of two-dimensional nano-structure graphene nucleation and in-situ self-nucleation are introduced to complement each other, a second phase of silicon in A356.2 is refined by multi-dimensional scaling, and multi-dimensional nano-phases strengthen the aluminum-based composite material simultaneously. The preparation method solves the problems of limiting the strength, hardness, plasticity and toughness during the application of common A356.

Abstract: A carbon nano reinforced aluminum matrix conductive composite and a preparation method thereof are provided. In the preparation method, nano silicon dioxide chemically grows on the surface of graphene oxide, reduced graphene oxide@silicon dioxide carbon nano powder is prepared and reduced in the process of high-temperature sintering, and the mixed powder is blown into a melt using an inert gas, and then stirred, purified and cast.