Structural and Electromagnetic Properties of Lithium Ferrite Manufactured by Extrusion Printing / E. N. Lysenko, E. V. Nikolaev, V. A. Vlasov [et al.]

Set Level: Russian Physics Journal, Известия вузов. Физика, New York, Springer Science+Business Media LLCCoauthor: Lysenko, E. N., Specialist in the field of electrical engineering, Professor of Tomsk Polytechnic University, Doctor of technical sciences, 1972-, Elena Nikolaevna;Nikolaev, E. V., specialist in the field of electrical engineering, engineer of Tomsk Polytechnic University, 1989-, Evgeny Vladimirovich;Vlasov, V. A., Physicist, Senior researcher of Tomsk Polytechnic University, Candidate of physical and mathematical sciences, 1975-, Vitaliy Anatolievich;Svirkov, Aleksandr Sergeevich, A. S., 1999-, specialist in the field of instrument engineering, Engineer of Tomsk Polytechnic University;Surzhikov, A. P., physicist, Professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences (DSc), 1951-, Anatoly Petrovich;Sheveleva, E. A., specialist in the field of electrical engineering, Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences, 1975-, Elena Aleksandrovna;Plotnikova, I. V., specialist in the field of quality, Associate Professor of the Tomsk Polytechnic University, Candidate of technical sciences, 1965-, Inna Vasilievna;Artishchev, S. A.Language: английский.Country: США.Abstract: The structure and electromagnetic properties of a lithium ferrite, Li0.5Fe2.5O4, fabricated by an additive manufacturing process based on extrusion printing of ferrite samples with a binder substance followed by hightemperature sintering are studied. A preliminary ferrite-powder synthesis is carried out by the solid-phase method using iron oxide and lithium carbonate. The ferrite paste for printing is prepared using a binder based on ethyl cellulose and terpineol. The samples measuring 100 and 500 μm are fabricated by extrusion in a Voltera V-one 3D printer. The samples are sintered in a laboratory furnace at 1100°C. The microstructure and properties of the resulting ferrites depend on the printed layer thickness. The samples are characterized by a relative density of 72 and 76%, a specific saturation magnetization of 50 and 62 emu/g, a Curie temperature of 625 and 630°C, and a specific electric resistivity of 1.1·1010 and 1.6·109 Ω·cm for the 100 and 500 μm-thick samples, respectively.Bibliography: References: 29 tit.Subject: lithium ferrite | Li0.5Fe2.5O4 | additive manufacturing | extrusion printing | electromagnetic properties | электронный ресурс | труды учёных ТПУ Online Resources:https://doi.org/10.1007/s11182-024-03203-3
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References: 29 tit

The structure and electromagnetic properties of a lithium ferrite, Li0.5Fe2.5O4, fabricated by an additive manufacturing process based on extrusion printing of ferrite samples with a binder substance followed by hightemperature sintering are studied. A preliminary ferrite-powder synthesis is carried out by the solid-phase method using iron oxide and lithium carbonate. The ferrite paste for printing is prepared using a binder based on ethyl cellulose and terpineol. The samples measuring 100 and 500 μm are fabricated by extrusion in a Voltera V-one 3D printer. The samples are sintered in a laboratory furnace at 1100°C. The microstructure and properties of the resulting ferrites depend on the printed layer thickness. The samples are characterized by a relative density of 72 and 76%, a specific saturation magnetization of 50 and 62 emu/g, a Curie temperature of 625 and 630°C, and a specific electric resistivity of 1.1·1010 and 1.6·109 Ω·cm for the 100 and 500 μm-thick samples, respectively

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