| http://www.w3.org/ns/prov#value | - Examples of useful conducting materials are certain metals such as Au and Ag; SiC; electronically conducting metal oxides such as SnO2, V2 O5 and PbO which may be admixed with Al2 O3 or the like; and oxide semiconductors of the Perovskite structure such as LaCrO3, LaNiO3 and SmCoO3 respectively with added Ca, Zr, Mg and/or Sr.
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