Influence of Nanocrystallite Size on Magnetic Properties of Iron Nitride γ’-Fe4N
Source abstract
Abstract
In this paper, samples of nanocrystalline iron nitride γ’-Fe4N, doped with small amounts of hardly reducible promoter oxides (Al2O3, CaO, and K2O), were subjected to electron magnetic resonance (EMR) measurements. The samples differed in the average nanocrystallite size of iron nitride (23–54 nm). The EMR analysis was performed to probe the magnetic characteristics of the nanoparticles. The spectra, fitted with a Voigt function, were deconvoluted into contributions from the γ’-Fe4N phase in the nanoparticle core and from surface-associated iron ions. The resulting magnetic responses were quantitatively correlated with nanoparticle size, elucidating finite-size effects governing the system’s magnetic behavior.
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Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic Properties and Synthesis of Ferrites · Layered Double Hydroxides Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, 45 Piastow Ave., 70-311 Szczecin, Poland
Institute of Molecular Physics, Polish Academy of Sciences, 17 Smoluchowskiego Str., 60-179 Poznań, Poland
Department of Chemical Engineering and Process Design, Silesian University of Technology, 7 Ks. M. Strzody Str., 44-100 Gliwice, Poland
Department of Chemical and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, 42 Piastow Ave., 70-365 Szczecin, Poland
Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 19 Piastow Ave., 70-310 Szczecin, Poland
Funding
The National Science Centre, Poland · The National Centre for Research and Development
References (60)
Show source-provided references
1. Nanomaterials: An overview of synthesis, classification, characterization, and applications10.1002/nano.202300038 ↗
2. (2021). Quantum nanoscience. Nat. Nanotechnol., 16, 1293.10.1038/s41565-021-01058-0 ↗
3. Tantra, R. (2016). Introduction. Nanomaterial Characterization, Wiley.10.1002/9781118753460 ↗
4. High-Entropy Materials: From Bulk to Sub-nano10.1002/adfm.202504275 ↗
5. From Bulk to Nano: Formation, Features, and Functions of Nano-Black Carbon in Biogeochemical Processes10.1021/acs.est.4c07027 ↗
6. Mechanical properties of submicronic and nanometric boron carbides obtained by Spark Plasma Sintering: Influence of B/C ratio and oxygen content10.1016/j.ceramint.2019.02.033 ↗
7. Measuring particle size distribution of nanoparticle enabled medicinal products, the joint view of EUNCL and NCI-NCL. A step by step approach combining orthogonal measurements with increasing complexity10.1016/j.jconrel.2019.02.030 ↗
8. A Method of Determining Nanoparticle Size Distribution in Iron Ammonia Synthesis Catalyst by Measuring Mass Changes During the Nitriding Process10.1016/j.cattod.2016.09.005 ↗
9. Size-dependence of melting thermodynamics of nano-Bi10.1007/s11051-025-06446-4 ↗
10. Size-Dependence of the Melting Temperature of Individual Au Nanoparticles10.1002/ppsc.201800480 ↗
11. Acheche, A., Nelayah, J., Gatti, R., Alloyeau, D., Ricolleau, C., and Amara, H. (Faraday Discuss., 2026). Thermal stability of CoNiPtCuAu nanoalloys: From segregation to melting properties, Faraday Discuss., advance article.10.1039/D5FD00096C ↗
12. Dielectric investigations and theoretical calculations of size effect in lead titanate nanocrystals10.1109/TUFFC.2006.172 ↗
13. Magnetic response of Ho3+ doped Ni0.4Cu0.6HoyFe2-yO4 spinel ferrites and their correlation with crystallite size10.1016/j.ceramint.2024.07.096 ↗
14. Effects of particle size of dielectric fillers on the output performance of piezoelectric and triboelectric nanogenerators10.1007/s40145-021-0482-1 ↗
15. Reinforcement size dependence of mechanical properties and strengthening mechanisms in diamond reinforced titanium metal matrix composites10.1016/j.compositesb.2018.12.014 ↗
16. An overview of the effect of grain size on mechanical properties of magnesium and its alloys10.2320/matertrans.MT-MF2022005 ↗
17. Size-Dependent Transformation of α-Fe into γ′-Fe 4 N in Nanocrystalline the Fe–NH3–H2 System10.1021/acs.jpcc.6b02526 ↗
18. Hysteresis phenomenon in a reaction system of nanocrystalline iron and a mixture of ammonia and hydrogen10.1039/C6CP04606A ↗
19. Shekhawat, D., Vauth, M., and Pezoldt, J. (2022). Size Dependent Properties of Reactive Materials. Inorganics, 10.10.3390/inorganics10040056 ↗
20. Size of cerium dioxide support nanocrystals dictates reactivity of highly dispersed palladium catalysts10.1126/science.adf9082 ↗
21. Kinetics and Thermodynamics of the Phase Transformation in the Nanocrystalline Substance—Gas Phase System10.3390/cryst14020129 ↗
22. Tulinski, M., and Jurczyk, M. (2017). Nanomaterials Synthesis Methods. Metrology and Standardization of Nanotechnology: Protocols and Industrial Innovations, Wiley.10.1002/9783527800308.ch4 ↗
23. Iron nitride family at reduced dimensions: A review of their synthesis protocols and structural and magnetic properties10.1021/jp510606z ↗
24. Iron Nitride Thin Films: Growth, Structure, and Properties10.1021/acs.cgd.1c01528 ↗
25. Analysis of the Structure and Thermal Stability of Cu@Si Nanoparticles
26. Arabczyk, W., Lendzion-Bieluń, Z., and Wróbel, R. (2005). Sposób Otrzymywania Nanomateriałów o Okreslonych Rozmiarach Krystalitów. (PL361256A1), Polish Patent, Available online: https://eprofil.pue.uprp.gov.pl/public/registry/view/Pat.206909?lng=pl.
27. Solid−Gas Reaction with Adsorption as the Rate Limiting Step10.1021/jp061947b ↗
28. Design, preparation and characterization of iron nitride magnetic abrasives10.1016/j.jallcom.2018.09.389 ↗
29. Efficient microplastic removal in aquatic environments using iron–nitrogen co-doped layered biocarbon materials10.1016/j.cej.2025.160095 ↗
30. Polymer based composites for electromagnetic interference (EMI) shielding: The role of magnetic fillers in effective attenuation of microwaves, a review10.1016/j.hybadv.2024.100200 ↗
31. Irregularly Shaped Iron Nitride Nanoparticles as a Potential Candidate for Biomedical Applications: From Synthesis to Characterization10.1021/acsomega.0c01130 ↗
32. Energy-efficient electric control of magnetization in polymer-based magnetoelectrics for spintronic applications10.1038/s43246-025-00762-x ↗
33. Transition Metal (Fe, Co and Ni) Carbide and Nitride Nanomaterials: Structure, Chemical Synthesis and Applications10.1002/cnma.201500073 ↗
34. Saito, T., Yamamoto, H., and Nishio-Hamane, D. (2024). Production of Rare-Earth-Free Iron Nitride Magnets (α″-Fe16N2). Metals, 14.10.3390/met14060734 ↗
35. Lee, O.M., and Abbasian, M. (2025). Reducing Rare-Earth Magnet Reliance in Modern Traction Electric Machines. Energies, 18.10.3390/en18092274 ↗
36. Stability and magnetism of FeN high-pressure phases10.1039/C8CP07165A ↗
37. Magnetic and transport properties of single-phase N-rich iron nitrides10.1016/j.matlet.2018.12.089 ↗
38. Microstructure-dependent magnetic permeability in ferrites from nanoparticles10.1016/j.ceramint.2023.03.287 ↗
39. Influence of crystallite size on the magnetic properties of Fe3O4 nanoparticles10.1016/j.jallcom.2016.03.279 ↗
40. Arabczyk, W., Pelka, R., Brzoza-Kos, A., Kocemba, I., Rokicka-Konieczna, P., Skulmowska-Polok, K., Klimza, K., and Lendzion-Bieluń, Z. (2024). Studies of Phase Transformation Kinetics in the System of Nanocrystalline Iron/Ammonia/Hydrogen at the Temperature of 350 °C by Means of Magnetic Permeability In Situ Measurement. Appl. Sci., 14.10.3390/app14188452 ↗
41. FW15/45M method for determination of the grain size distribution from powder diffraction line profile10.1016/j.jallcom.2004.05.040 ↗
42. Pielaszek, R. (2004). Analytical expression for diffraction line profile for polydispersive powders. Applied Crystallography, Proceedings of the XIX Conference, Kraków, Poland, 1–4 September 2003, World Scientific Publishing.10.1142/9789812702913_0009 ↗
43. Arabczyk, W., Pelka, R., Jasińska, I., and Lendzion-Bieluń, Z. (2024). Thermodynamics of Iron Ammonia Synthesis Catalyst Sintering. Crystals, 14.10.3390/cryst14020188 ↗
44. Studies of the Kinetics of Two Parallel Reactions: Ammonia Decomposition and Nitriding of Iron Catalyst10.1021/jp8079759 ↗
45. Study of Phase Transformation Processes Occurring in the Nanocrystalline Iron/Ammonia/Hydrogen System by the Magnetic Permeability Measurement Method10.1021/acs.jpcc.2c00807 ↗
46. Double-Layer Model of the Fused Iron Catalyst for Ammonia Synthesis10.1021/la981132x ↗
47. Investigation of nitriding and reduction processes in the nanocrystalline iron-ammonia-hydrogen system at 350 °C10.1039/C5CP02376A ↗
48. Passivation and oxidation of an ammonia iron catalyst10.1016/j.apcata.2007.07.006 ↗
49. Studies of magnetic properties of nanocrystalline iron of different sizes of nanocrystallites10.1016/j.jmmm.2017.07.095 ↗
50. Coey, J.M.D. (2010). Magnetism and Magnetic Materials, Cambridge University Press.
51. Muñoz Medina, G.A., Mudarra Navarro, A.M., Deluque Toro, C.E., and Gil Rebaza, A.V. (2025). Structural, Thermophysical, and Magnetic Properties of the γ′-Fe4N System: Density Functional Theory and Experimental Study. Processes, 13.10.3390/pr13082402 ↗
52. Magnetic and Electrochemical Properties of γ′-Fe4N Nanoparticles with Cuboidal and Rodlike Morphologies10.1021/acs.jpcc.2c07335 ↗
53. Migration of N element and evolution of microstructure in spark plasma sintered bulk γ′-Fe4N10.1016/j.jallcom.2022.167201 ↗
54. Abragam, A., and Bleaney, B. (1970). Electron Paramagnetic Resonance of Transition Ions, Oxford University Press.
55. Gubin, S.P. (2009). Magnetic Nanoparticles, Wiley-VCH Verlag GmbH & Co. KGaA.
56. Finite size effects in ZnO nanoparticles: An electron paramagnetic resonance (EPR) analysis10.1002/pssr.201004450 ↗
57. Magnetic properties of KY0.93Er0.05Tm0.02(WO4)2 and NaY0.97Er0.02Tm0.01(WO4)2 nanocrystals obtained using Pechini and hydrothermal methods10.1016/j.jpcs.2019.109273 ↗
58. Magnetic properties of NaY1−x−yHoxYby(WO4)2: X = 0.05, y = 0.02 and KY1−x−yHoxYby(WO4)2: X = 0.02, y = 0.01 nanopowders obtained by Pechini and hydrothermal methods10.1016/j.cplett.2018.11.060 ↗
59. Magnetic Properties of Steel Ball Samples, Investigated before and after Nitriding10.24425/123796 ↗
60. Kaczmarek, S.M., Michalski, J., Frączek, T., Dudek, A., Fuks, H., and Leniec, G. (2023). Mechanical and Magnetic Investigations of Balls Made of AISI 1010 and AISI 1085 Steels after Nitriding and Annealing. Metals, 13.10.3390/met13061060 ↗