About: http://webisa.webdatacommons.org/183574843

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	Both metals and ceramics are used as the matrix, while additives include polymers, graphite, and other ceramics or minerals.
http://www.w3.org/ns/prov#wasQuotedFrom	nap.edu