Contact assembly for electrical devices and method for making thereof

A contact assembly for an electrical device and a method for making such an assembly are provided. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above. 种用于电气装置的触点组件以及种制作此类组件的方法，所述触点组件包括衬底和设置在所述衬底上的触点材料。所述触点材料包括复合材料，所述复合材料包括耐火材料和基质材料。所述基质材料具有比所述耐火材料更高的延展性。所述复合材料进步包括芯部区和形成所述芯部区边界的外部区，所述芯部区的所述耐火材料的浓度比所述外部区的所述耐火材料的浓度更高。所述方法对共混原料应用冷喷涂以产生包括上文描述的所述复合材料的层。