A rapid heat treatment for nanocrystallization of amorphous Fe75.1Cu1Nb1.5Si15.5B6.9 and Fe83Cu1Nb4B12 tape wound cores
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In: Journal of magnetism and magnetic materials, Vol. 592.2024, No. 15 February, 171797, 15.02.2024.
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TY - JOUR
T1 - A rapid heat treatment for nanocrystallization of amorphous Fe75.1Cu1Nb1.5Si15.5B6.9 and Fe83Cu1Nb4B12 tape wound cores
AU - Plutta, Niklas
AU - Spieckermann, Florian
AU - Polak, Christian
AU - Marsilius, Mie
AU - Zehetbauer, Michael J.
AU - Eckert, Jürgen
N1 - Publisher Copyright: © 2024 Elsevier B.V.
PY - 2024/2/15
Y1 - 2024/2/15
N2 - A rapid annealing technique for soft magnetic Fe75.1Cu1Nb1.5Si15.5B6.9 and Fe83Cu1Nb4B12 tape wound cores is presented. Its effectiveness for creating a fine-grained nanocrystalline structure is demonstrated by measurements of the magnetic hysteresis loops as well as by structural investigations done by X-ray diffraction. The results show that the technique reduces the average crystallite sizes from about 27 nm to 17 nm for Fe75.1Cu1Nb1.5Si15.5B6.9, and from about 52 nm to 15 nm for Fe83Cu1Nb4B12. The coercivity after the rapid annealing is about three times lower for the Fe75.1Cu1Nb1.5Si15.5B6.9 alloy and up to one order of magnitude lower for the Fe83Cu1Nb4B12 alloy compared to the coercivity after the standardized long-time heat treatment. The improved heat treatment is outstanding in the way that it produces better soft magnetic properties in high-performance alloy cores within much shorter time than the standard core heat treatments.
AB - A rapid annealing technique for soft magnetic Fe75.1Cu1Nb1.5Si15.5B6.9 and Fe83Cu1Nb4B12 tape wound cores is presented. Its effectiveness for creating a fine-grained nanocrystalline structure is demonstrated by measurements of the magnetic hysteresis loops as well as by structural investigations done by X-ray diffraction. The results show that the technique reduces the average crystallite sizes from about 27 nm to 17 nm for Fe75.1Cu1Nb1.5Si15.5B6.9, and from about 52 nm to 15 nm for Fe83Cu1Nb4B12. The coercivity after the rapid annealing is about three times lower for the Fe75.1Cu1Nb1.5Si15.5B6.9 alloy and up to one order of magnitude lower for the Fe83Cu1Nb4B12 alloy compared to the coercivity after the standardized long-time heat treatment. The improved heat treatment is outstanding in the way that it produces better soft magnetic properties in high-performance alloy cores within much shorter time than the standard core heat treatments.
KW - Heat treatment
KW - Nanocrystallinity
KW - Soft magnetic
KW - Tape wound core
UR - http://www.scopus.com/inward/record.url?scp=85184482928&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2024.171797
DO - 10.1016/j.jmmm.2024.171797
M3 - Article
AN - SCOPUS:85184482928
VL - 592.2024
JO - Journal of magnetism and magnetic materials
JF - Journal of magnetism and magnetic materials
SN - 0304-8853
IS - 15 February
M1 - 171797
ER -
