About: http://webisa.webdatacommons.org/215512243

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	But while calcium is the most attractive choice as a lightweight and inexpensive ingredient for a conductive composite, it is also proving the biggest hurdle.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org