Copper alloy compositions having enhanced thermal conductivity and wear resistance

Abstract

The present disclosure relates to powders and wires made from a copper-containing alloy. The copper-containing alloy is a copper-nickel-tin alloy or a copper-nickel-silicon-chromium alloy. Articles formed from the metal powder exhibit high thermal conductivity, high wear resistance, and thermal stability. The powders and wire also be used as a feed material for thermal spraying and copper-containing coatings are disclosed. The copper-containing alloy material promotes increased life of engine components and fuel efficiency when used as a cylindrical liner in an internal combustion engine.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 648,567, filed March 27, 2018, the entire contents of which are incorporated herein by reference. Background technique [0003] The present disclosure relates to copper alloy compositions in powder or wire form, processes for making and using such compositions in powder form, articles formed therefrom, and their use as feedstock for thermal spray coatings and plasma spray coatings use. The alloy is a copper-containing alloy exhibiting high thermal conductivity and high wear resistance. Thermal spray coatings exhibit high thermal conductivity, good wear resistance and thermal stability. The coating has particular application in combination with linings and coatings for internal combustion engines. [0004] The demands placed on components for combustion engines are high. It is especially important that these components simultaneously exhibi...

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Problems solved by technology

Contains some additives (e.g. lubricants) that tend to reduce thermal conductivity

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