Outstanding　piezoelectric　properties　were　obtained　in　Pb(Zn1/3Nb2/3)(0.20)(Zr0.50Ti0.50)(0.80)O-3/6　vol.%　Ag　(PZNPZT/Ag)　metal/ferroelectric　03　type　composites.　A　combination　of　X-ray　diffractometer　(XRD)　and　high　resolution　transmission　electron　microscopy　(HRTEM)　revealed　that　the　PZNPZT/Ag　ferroelectric　composite　presents　a　novel　intragranular　structure.　It　is　suggested　that　the　uniform　distribution　of　nano-silver　particles　in　a　PZNPZT　matrix　was　the　origination　of　nanodomains　in　PZNPZT/Ag　composites,　further　leading　to　the　strong　piezoelectric　effect.　We　believe　that　our　discovery　here　will　be　helpful　in　the　development　of　new　piezoelectric　composites　with　outstanding　properties.　(C)　2017　Acta　Materialia　Inc.　Published　by　Elsevier　Ltd.　All　rights　reserved.