About: http://webisa.webdatacommons.org/147945649

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The piezoelectric layers 10 contain a ceramic material, for example lead zirconate titanate (PZT) or a lead-free ceramic.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com