About: http://webisa.webdatacommons.org/24581148

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	Moreover, a IV-group element such as Si or an iron group element such as Fe is especially undesirable as metallic impurities because it acts to lower the thermal conductivity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com