▎ 摘　　要

NOVELTY - The preparation method of lead zirconate titanate-based composite piezoelectric ceramic involves preparing graphene oxide, mixing lead zirconate titanate piezoelectric powder with graphene oxide, and ball milling to obtain composite powder, press-forming composite powder, heating, calcining, and reducing graphene oxide coated on surface of lead zirconate titanate piezoelectric material to graphene, crushing the calcined product, and ball milling to obtain graphene coated piezoelectric ceramic composite powder, and sintering, and cooling to room temperature. USE - Preparation method of lead zirconate titanate-based composite piezoelectric ceramic for use in piezoelectric power generating device for piezoelectric power generation (all claimed). ADVANTAGE - The method enables preparation of lead zirconate titanate-based composite piezoelectric ceramic with 0.5x 106 S/m to 2.3x 105 S/cm conductivity. DETAILED DESCRIPTION - The preparation method of lead zirconate titanate-based composite piezoelectric ceramic involves (1) preparing graphene oxide, (2) mixing lead zirconate titanate piezoelectric powder with 0.1-3 %mass graphene oxide, and ball milling to obtain composite powder, (3) press-forming the composite powder, heating, calcining, and reducing graphene oxide coated on surface of lead zirconate titanate piezoelectric material to graphene, (4) crushing the calcined product, and ball milling to obtain graphene coated piezoelectric ceramic composite powder, and (5) sintering under protection of vacuum or inert atmosphere, and cooling to room temperature. INDEPENDENT CLAIMS are included for the following: (1) lead zirconate titanate-based composite piezoelectric ceramic; (2) piezoelectric power generating device; and (3) use of lead zirconate titanate-based composite piezoelectric ceramic in piezoelectric power generation.