About: http://webisa.webdatacommons.org/415410674

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	Powders of Si3N4 and dopants such as alumina, yttria, magnesium oxide, and strontium oxide were conventionally processed to form a doped composition of silicon nitride.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es