| abstract |
An electrically conductive high-melting-point oxide light source that can be used in an oxygen-containing atmosphere includes a sintered oxide having as an essential constituent an oxide of an element selected from the group consisting of ruthenium, iridium, rhodium and rhenium. It is used an oxygen-containing atmosphere at a temperature of not less than 1700° C. A high-melting-point conductive paste includes particles of a sintered oxide having as an essential constituent an oxide of an element selected from the group consisting of ruthenium, iridium, rhodium and rhenium, and a binder and solvent. An exhaust gas filter includes a powdered sintered oxide having as an essential constituent an oxide of an element selected from the group consisting of ruthenium, iridium, rhodium and rhenium, the powdered sintered oxide being applied to and baked on, or formed into a heating element and attached to, a surface of a diesel engine exhaust gas filter of ceramic to form a heating element. |