Thermal reactive modifications of polymer surfaces by infrared laser radiation

Pola, J.

doi:10.1016/j.jaap.2022.105819

Cited by 3 publications

(1 citation statement)

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“…There is an emerging issue of rare earth metal depletion; this constitutes a significant problem for manufactures whose machines rely on the use of NdFeB magnets. Therefore, development of a novel coating strategy that would increase the product lifetime is a of the greatest importance [ 16 , 17 , 18 , 19 , 20 ]. A very promising method relies on the use of laser-assisted techniques since they enable fast, efficient, repeatable, and scalable surface modification thanks to high energy density, favorable coherence, and direction.…”

Section: Introductionmentioning

confidence: 99%

Commercial-Scale Modification of NdFeB Magnets under Laser-Assisted Conditions

Radwan-Pragłowska,

Łysiak

et al. 2024

Nanomaterials

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Rare Earth elements (REE) such as NdFeB are commonly used to produce permanent magnets. Thanks to their superior properties, these materials are highly desirable for green energy applications such as wind power generators or electric cars. Currently, REEs are critical for the ongoing development of eco-friendly solutions in different industrial branches. The emerging issue of REE depletion has led to a need for new methods to enable the life cycle elongation, resistance to wear, and external factors improvement of NdFeB magnets. This can be achieved by advanced, nanostructured coating formation of magnet surfaces to increase their functionality and protect from humidity, pressure, temperature, and other factors. The aim of the following research was to develop a new, scalable strategy for the modification of NdFeB magnets using laser-assisted technique, also known as Laser cladding. For this purpose, four different micropowders were used to modify commercial NdFeB samples. The products were investigated for their morphology, structure, chemical composition, and crystallography. Moreover, magnetic flux density was evaluated. Our results showed that laser cladding constitutes a promising strategy for REE-based permanent magnets modification and regeneration and may help to improve durability and resistance of NdFeB components.

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