Explanatory notes
… production, crucibles, stirrers, etc.; in the chemical and petroleum industries as catalysts (e.g., in the … various, hard, corrosion-resistant alloys used for tipping pen-nibs or instrument pivots. It is also used as a … wires. (6) Platinum-cobalt alloys , - permanent magnets. (7) Palladium-ruthenium alloys , …