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    • 40. 发明申请
    • Electrode for a spark plug
    • 电极用于火花塞
    • US20100045156A1
    • 2010-02-25
    • US11918999
    • 2006-03-20
    • Lars MenkenKlaus CzerwinskiThomas KaiserAlexander FlaigJochen BoehmJochen Rager
    • Lars MenkenKlaus CzerwinskiThomas KaiserAlexander FlaigJochen BoehmJochen Rager
    • H01T13/39
    • H01T13/39
    • An electrode is provided for a spark plug made of a base material and at least one additive material situated in the base material in a dispersedly distributed manner, which is intercalated in the base material, and is a metal oxide, and is characterized by a negative enthalpy of formation greater than 800 kJ/mol O2. The base material is an Au based or an Rh based material or is pure Au or Rh, the proportion of the additive material amounting to between 5 vol. % and 50 vol. %. Alternatively, Pt-based materials or pure Pt are provided as the base material, the proportion of the additive material at average particle diameters of the additive material between 5 μm and 20 μm amounting to between 21 vol. % and 50 vol. % or the additive material being at least one metal oxide from the group of the rare earth metal oxides and/or at least one metal oxide from the group Al2O3, Y2O3, Sc2O3, CaO, SrO, BaO and/or at least one mixed oxide, such as spinel, made up of at least one alkaline earth metal oxide, one rare earth metal oxide, Al2O3, Y2O3 and/or Sc2O3, the proportion of the additive material amounting to between 5 vol. % and 50 vol. %.
    • 提供一种用于由基材制成的火花塞和位于基材中的分散分布的至少一种添加剂材料的电极,其插入基材中,并且是金属氧化物,其特征在于负极 形成焓大于800 kJ / mol O2。 基材为Au基或Rh基材料或纯Au或Rh,添加剂材料的比例为5体积% %和50体积。 %。 或者,提供Pt基材料或纯Pt作为基材,添加剂材料的平均粒径在5μm和20μm之间的比例为21体积%。 %和50体积。 %或添加剂材料是来自稀土金属氧化物和/或至少一种来自Al 2 O 3,Y 2 O 3,Sc 2 O 3,CaO,SrO,BaO和/或至少一种混合氧化物的金属氧化物中的至少一种金属氧化物 如尖晶石,由至少一种碱土金属氧化物,一种稀土金属氧化物,Al 2 O 3,Y 2 O 3和/或Sc 2 O 3组成,添加剂的比例为5体积%。 %和50体积。 %。