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Albuquerque | Aqueous Electrodeposition

Magnetostrictive Thin Films

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Challenge

High-magnetostriction lanthanide alloys could only be made in non-aqueous, molten-salt systems. The fielded alternatives were flat-only ribbon, line-of-sight films under a micron thick, or brittle bulk, and none of them could be built into a chip.

Solution

A NiFeCo-Lanthanide alloy deposited from standard aqueous solution. It is MEMS-compatible, coats any geometry conformally, and grows from 50 nm to over 1 mm thick.

>700 ppm
magnetostriction in a MEMS-compatible thin film
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The VastVision team in front of the cleanroom at the Albuquerque lab
The VastVision team · Albuquerque lab