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Abstract

A powder metal composition for a powder metal material to be compacted, sintered, and heat treated is comparable to wrought 6063 aluminum alloy. The powder metal composition consists essentially of an aluminum powder metal with no pre-alloyed alloying additions, an aluminum-silicon powder metal, an elemental magnesium powder metal, optionally an elemental tin powder metal, and optionally a ceramic addition (which is not included when calculating the weight percentages of the alloying elements). A weight percent of silicon is in a range of 0.2 to 0.6 wt % of the powder metal composition, of magnesium is in a range of 0.5 to 0.9 wt %, and of tin is in a range of 0.0 to 1.0 wt %. This powder metal is compactable to form a green compact which is further sinterable and heat treatable to provide a powder metal composition comparable to a wrought 6063 aluminum alloy and which offers exceptional thermal conductivity.

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First Claim