Aluminium-nickel alloy for manufacturing a heat conducting part, such as a heat exchanger
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United States of America
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Nov 12, 2024
Grant Date -
Mar 30, 2023
app pub date -
Sep 2, 2022
filing date -
Sep 2, 2022
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Abstract
An alloy formed of aluminum, nickel, scandium and optionally one, two or more further metals. The aluminum alloy is suitable for additive manufacturing of lightweight highly thermally conductive components for aircraft, such as heat exchangers. In a first step, a powder of the described aluminum alloy is produced by additive manufacturing, such as laser melting in the L-PBF process. Large grains are able to grow epitaxially along the build direction thereby increasing phonon and electron mobility along the build direction. With this, a higher thermal conductivity can be achieved. In a second step, the preliminary part is hardened by precipitation of secondary phases at 250 to 400 C to form the hardened part. 3D-printed lightweight parts with high thermal conductivity are obtained.
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