About: http://webisa.webdatacommons.org/286446003

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	Defects can be due to processing such as porosity, large grain agglomerates, or foreign material incorporated as a contaminant or they can be caused by sample preparation, such scratch marks produced during grinding.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com