▎ 摘 要
NOVELTY - An aluminum alloy material contains aluminum alloy raw material comprising graphene (0.1-1 wt.%), carbon nanotube (1-5 wt.%) and remainder of aluminum. USE - Aluminum alloy material is used for preparing back plate (claimed). ADVANTAGE - The aluminum alloy material has excellent radiation characteristics. The aluminum alloy back plate is economically manufactured, using the aluminum alloy material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of aluminum alloy back plate, which involves preparing aluminum alloy material, adding aluminum alloy material to a heating furnace, heating and smelting, and casting smelted aluminum raw material.