▎ 摘 要
NOVELTY - A copper-based alloy blank material comprises 80-97 wt.%, preferably 97 wt.% copper, 1-1.5 wt.%, preferably 1 wt.% graphene, and 2-20 wt.%, preferably 2 wt.% niobium. USE - Copper-based alloy blank material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of copper-based alloy blank material.