▎ 摘 要
NOVELTY - An electric contact material comprises 0.1-1 wt.% graphene, and 99-99.9 wt.% copper alloy comprising 0.15-0.5 wt.% bismuth, 0.1-3 wt.% zinc, tin, aluminum, nickel and/or silver, and remaining copper. USE - Electric contact material (claimed). ADVANTAGE - The electric contact material has no reduction in electroconductivity and thermal conductivity, high hardness, and excellent impact mechanical shock resistance and arc-ablation resistance, provided by the graphene framework. The electric contact material can be prepared economically on a large scale industrially. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of electric contact material.