NANOCOMPOSITE MATERIALS BASED ON METAL PSEUDOALLOYS FOR CONTACTS OF SWITCHES OF POWERFUL ELECTRICAL NETWORKS WITH HIGH PHYSICAL AND MECHANICAL PROPERTIES Russian patent published in 2019 - IPC H01H1/25 C22C1/04 B82B1/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and nanotechnology, in particular to the development of nanocomposite electric contact, heat-resistant, electroerosion-resistant, electrotechnical, nanostructured materials based on copper (Cu), which can be used in production of power rupturable electric contacts, in switches of powerful electric networks and vacuum arc-quenching chambers. Nanocomposite electrocontact copper-based material consisting of a partially disordered copper matrix in which clusters of two refractory components with size smaller than 5 nm are distributed. Powders of copper and two refractory metals (Me₁ and Me₂) have volume ratio of 50 % Cu-XMe₁-(50-X)Me₂, where X is from 5 to 45 %, wherein material has porosity of 1–3 % and Vickers hardness of 4.5–12 GPa.

EFFECT: invention increases physical and mechanical properties of material, reduces porosity and specific electrical resistance.

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