TY - GEN
T1 - Magnetic properties of oxalate coated iron powders based soft magnetic composites
AU - Walters, Zakk
AU - Foster, Linsea
AU - Waryoba, Daudi
AU - Rajagopalan, Ramakrishnan
N1 - Publisher Copyright:
© Advances in Powder Metallurgy and Particulate Materials - 2025: Proceedings of the 2025 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2025. All rights reserved.
PY - 2025
Y1 - 2025
N2 - The transition to electric vehicles necessitates more efficient motor designs, with three-dimensional flux motors utilizing high-strength soft magnetic composites (SMC) emerging as a promising alternative. This study explores modifying iron powders with hydrated oxalate, producing a soft magnetic composite. We report two different types of oxalate coating on iron that include deposition of mixed copper/iron oxalate and manganese/zinc oxalate coating on iron, respectively. AC and DC magnetic measurement of SMC made using copper/iron oxalate revealed that increasing treatment temperature enhances DC permeability. Furthermore, the contribution to the core losses as a function of heat treatment and AC frequency were also studied. These findings provide insights into optimizing soft magnetic composites for high-performance electric motor applications.
AB - The transition to electric vehicles necessitates more efficient motor designs, with three-dimensional flux motors utilizing high-strength soft magnetic composites (SMC) emerging as a promising alternative. This study explores modifying iron powders with hydrated oxalate, producing a soft magnetic composite. We report two different types of oxalate coating on iron that include deposition of mixed copper/iron oxalate and manganese/zinc oxalate coating on iron, respectively. AC and DC magnetic measurement of SMC made using copper/iron oxalate revealed that increasing treatment temperature enhances DC permeability. Furthermore, the contribution to the core losses as a function of heat treatment and AC frequency were also studied. These findings provide insights into optimizing soft magnetic composites for high-performance electric motor applications.
UR - https://www.scopus.com/pages/publications/105031607292
UR - https://www.scopus.com/pages/publications/105031607292#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:105031607292
T3 - Advances in Powder Metallurgy and Particulate Materials - 2025: Proceedings of the 2025 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2025
SP - 380
EP - 385
BT - Advances in Powder Metallurgy and Particulate Materials - 2025
PB - Metal Powder Industries Federation
T2 - 2025 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2025, held in conjunction with Additive Manufacturing with Powder Metallurgy Conference, AMPM 2025
Y2 - 15 June 2025 through 18 June 2025
ER -