<http://webisa.webdatacommons.org/2909816>	<http://www.w3.org/ns/prov#value>	"Examples of the material of the electrode-covering layer are metals such as platinum (Pt), gold (Au), silver (Ag), palladium (Pd), and rhodium (Rh); oxides such as alumina, silica, mullite, spinel, and ferrite; carbides such as silicon carbide (SiC) and titanium carbide (TiC); nitride such as silicon nitride (SiN); adhesives such as silica (SiO2) adhesive, alumina (Al2 O3) adhesive and zirconia (Z" .
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<http://webisa.webdatacommons.org/2909816>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .