▎ 摘　　要

NOVELTY - A powder metallurgy material contains 14-37 pts. wt. silicon carbide, 13-32 pts. wt. silicon nitride, 11-26 pts. wt. silica, 8-17 pts. wt. zirconium silicate, 4-17 pts. wt. zirconium oxide, 7-17 pts. wt. nano-copper oxide, 9-19 pts. wt. nano-graphene powder, 3-11 pts. wt. nano-aluminum silicate, 7-13 pts. wt. nano-magnesium oxide, 5-18 pts. wt. dispersant and 18-35 pts. wt. water. USE - The powder metallurgy material is useful for automobile engine cylinder liner. ADVANTAGE - The powder metallurgy material is prepared by simple method with low energy consumption and environmentally-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of powder metallurgy material.