Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications
In this work, complex studies of the structure and magnetic properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> powders obtained by the mechanochemical and citrate methods were carried out. The solubility of In in strontium hexaferrite SrFe₁₂O₁₉ at 1200...
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| author | Polina I. Nikolenko Timur R. Nizamov Igor G. Bordyuzhin Maxim A. Abakumov Yulia A. Baranova Alexander D. Kovalev Igor V. Shchetinin |
| author_facet | Polina I. Nikolenko Timur R. Nizamov Igor G. Bordyuzhin Maxim A. Abakumov Yulia A. Baranova Alexander D. Kovalev Igor V. Shchetinin |
| author_sort | Polina I. Nikolenko |
| collection | DOAJ |
| description | In this work, complex studies of the structure and magnetic properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> powders obtained by the mechanochemical and citrate methods were carried out. The solubility of In in strontium hexaferrite SrFe₁₂O₁₉ at 1200 °C was determined. The structure and properties of the powders were studied using X-ray diffraction analysis, Mössbauer spectroscopy and scanning electron microscopy. Measurements of magnetic properties in magnetic fields up to 1600 kA/m were also performed. Additionally, the hyperthermia effect was investigated. The possibility of controlling the coercivity of the samples in the range from 188.9 kA/m to 22.3 kA/m and saturation magnetization from 63.5 A·m<sup>2</sup>/kg to 44.2 A·m<sup>2</sup>/kg with an increase in the degree of In doping was also demonstrated. Investigation of the magnetic hyperthermia of the samples was carried out by temperature measurement with an IR camera when they were introduced into alternating magnetic fields of various frequencies (144, 261 and 508 kHz) and amplitudes (between 11.96 and 19.94 kA/m). According to the study result, there was detected the heating of the SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> sample (x = 1.7). The highest values of magnetic hyperthermia of the sample were observed in a 19.94 kA/m magnetic field and a frequency of 261 kHz. At a concentration of 56.67 g/L, the sample was heated from 23 to 41 °C within 2 min. The parameters SLP (specific loss power) and ILP (intrinsic loss power) were calculated. |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T09:55:29Z |
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| spelling | doaj.art-f2289e1aa7a24b84ae14ebd9a294c4102023-11-16T15:50:26ZengMDPI AGMaterials1996-19442022-12-0116134710.3390/ma16010347Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia ApplicationsPolina I. Nikolenko0Timur R. Nizamov1Igor G. Bordyuzhin2Maxim A. Abakumov3Yulia A. Baranova4Alexander D. Kovalev5Igor V. Shchetinin6Department of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaDepartment of Physical Materials Science, University of Science and Technology MISIS, Leninsky Prospekt 4s1, 119049 Moscow, RussiaIn this work, complex studies of the structure and magnetic properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> powders obtained by the mechanochemical and citrate methods were carried out. The solubility of In in strontium hexaferrite SrFe₁₂O₁₉ at 1200 °C was determined. The structure and properties of the powders were studied using X-ray diffraction analysis, Mössbauer spectroscopy and scanning electron microscopy. Measurements of magnetic properties in magnetic fields up to 1600 kA/m were also performed. Additionally, the hyperthermia effect was investigated. The possibility of controlling the coercivity of the samples in the range from 188.9 kA/m to 22.3 kA/m and saturation magnetization from 63.5 A·m<sup>2</sup>/kg to 44.2 A·m<sup>2</sup>/kg with an increase in the degree of In doping was also demonstrated. Investigation of the magnetic hyperthermia of the samples was carried out by temperature measurement with an IR camera when they were introduced into alternating magnetic fields of various frequencies (144, 261 and 508 kHz) and amplitudes (between 11.96 and 19.94 kA/m). According to the study result, there was detected the heating of the SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> sample (x = 1.7). The highest values of magnetic hyperthermia of the sample were observed in a 19.94 kA/m magnetic field and a frequency of 261 kHz. At a concentration of 56.67 g/L, the sample was heated from 23 to 41 °C within 2 min. The parameters SLP (specific loss power) and ILP (intrinsic loss power) were calculated.https://www.mdpi.com/1996-1944/16/1/347magnetic hyperthermiahexaferriteSLP (specific power loss)ILP (intrinsic power loss)saturation magnetizationcoercivity |
| spellingShingle | Polina I. Nikolenko Timur R. Nizamov Igor G. Bordyuzhin Maxim A. Abakumov Yulia A. Baranova Alexander D. Kovalev Igor V. Shchetinin Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications Materials magnetic hyperthermia hexaferrite SLP (specific power loss) ILP (intrinsic power loss) saturation magnetization coercivity |
| title | Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications |
| title_full | Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications |
| title_fullStr | Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications |
| title_full_unstemmed | Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications |
| title_short | Structure and Magnetic Properties of SrFe<sub>12−x</sub>In<sub>x</sub>O<sub>19</sub> Compounds for Magnetic Hyperthermia Applications |
| title_sort | structure and magnetic properties of srfe sub 12 x sub in sub x sub o sub 19 sub compounds for magnetic hyperthermia applications |
| topic | magnetic hyperthermia hexaferrite SLP (specific power loss) ILP (intrinsic power loss) saturation magnetization coercivity |
| url | https://www.mdpi.com/1996-1944/16/1/347 |
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