About: http://webisa.webdatacommons.org/235020136

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	Hydrogen, like other additives such as nitrogen, silicon, sulfur, tungsten, titanium, silver, and the like, are frequently used to control the mechanical and tribological behavior of DLC coatings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com