| 摘要 |
An electrode material for use with spark plugs (10) and other ignition devices, where the electrode material includes ruthenium (Ru), plus one or more additional constituents like precious metals, refractory metals, active elements, metal oxides, or a combination thereof. In one example, the electrode material is a multi-phase material that has a matrix phase including ruthenium (Ru) and one or more precious metals, refractory metals and/or active elements, and a dispersed phase including a metal oxide. The metal oxide may be provided in particle form or fiber/whisker form, and is dispersed throughout the matrix phase. A powder metallurgy process for forming the electrode material into a spark plug electrode (12, 18, 30, 32) is also provided. |
