Contact assembly for electrical devices and method for making

US10446336B2 · kind B2 · utility

Assignee

• ABB Schweiz AG · CH

Inventors

• Leonardo Ajdelsztajn · Niskayuna, US
• Jeffrey Jon Schoonover · Albany, US
• Samuel Kim · Bristol, US
• Linda Yvonne Jacobs · Barkhamsted, US
• Maxime Michel Pean · Town of West Hartford, US
• Katherine Marjorie Coughlin · Town of West Hartford, US

Key dates

• Filing date: Dec 16, 2016
• Grant date: Oct 15, 2019
• Expiry date: Dec 16, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H11/048
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A contact assembly for an electrical device and a method for making such an assembly are presented. 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.