About: http://webisa.webdatacommons.org/437810604

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	It is known to form the ceramic tube from a ferromagnetic material such as ferrite, and then sinter a ferroelectric material, such as barium titanate, to the exterior surface of the tube.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk