High speed processing of NiFe2O4 spinel using a laser furnace
The Laser Furnace (LF) method has been applied to directionally solidify NiFe2O4 spinel disks from a mixture of Fe and Ni oxides in order to obtain uniform, dense targets for controlled synthesis of spinel nanoparticles via Laser Ablation. Application of a CO2 laser in Line Scan mode onto a sample w...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-12-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S235284782030099X |
| _version_ | 1797759117100580864 |
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| author | B. Özçelik S. Özçelik H. Amaveda H. Santos C.J. Borrell R. Sáez-Puche G.F. de la Fuente L.A. Angurel |
| author_facet | B. Özçelik S. Özçelik H. Amaveda H. Santos C.J. Borrell R. Sáez-Puche G.F. de la Fuente L.A. Angurel |
| author_sort | B. Özçelik |
| collection | DOAJ |
| description | The Laser Furnace (LF) method has been applied to directionally solidify NiFe2O4 spinel disks from a mixture of Fe and Ni oxides in order to obtain uniform, dense targets for controlled synthesis of spinel nanoparticles via Laser Ablation. Application of a CO2 laser in Line Scan mode onto a sample with the desired stoichiometry, enabled melt processing above 1580 °C at its outer surface layer. This process was carried out inside a continuous roller furnace at a maximum volume temperature of 1000 °C. Such combination helps avoid excessive thermal stress, crack formation and catastrophic failure of these magnetic ceramic monoliths. Higher energy incubation values yield increased molten volumes and a thicker resolidified surface layer with a dense microstructure. Despite the high solidification rates imposed, NiFe2O4 spinel is the main phase obtained according to X-Ray Diffraction (XRD) and magnetization studies. LF processed samples exhibit a reduction of the coercive fields and an increase of the saturation magnetization values, evidence for soft ferromagnetism and characteristic of the magnetic behaviour associated with this spinel. This work demonstrates the convenience of the LF method for preparation of uniform, dense targets for Laser Ablation and other evaporation based techniques used in the fabrication of nanoparticles. |
| first_indexed | 2024-03-12T18:39:50Z |
| format | Article |
| id | doaj.art-65ff6ecc3fcb4b5c91113301b143dc8b |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T18:39:50Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-65ff6ecc3fcb4b5c91113301b143dc8b2023-08-02T07:52:51ZengElsevierJournal of Materiomics2352-84782020-12-0164661670High speed processing of NiFe2O4 spinel using a laser furnaceB. Özçelik0S. Özçelik1H. Amaveda2H. Santos3C.J. Borrell4R. Sáez-Puche5G.F. de la Fuente6L.A. Angurel7Çukurova University, Faculty of Sciences and Letters, Physics Department, 01330, Adana, TurkeyHakkari University, Engineering Faculty, Food Engineering Department, 30000, Hakkari, TurkeyICMA (CSIC-University of Zaragoza), María de Luna, 3, 50018, Zaragoza, SpainICMA (CSIC-University of Zaragoza), María de Luna, 3, 50018, Zaragoza, SpainICMA (CSIC-University of Zaragoza), María de Luna, 3, 50018, Zaragoza, SpainDepartment of Inorganic Chemistry, University Complutense of Madrid, 28040, Madrid, SpainICMA (CSIC-University of Zaragoza), María de Luna, 3, 50018, Zaragoza, SpainICMA (CSIC-University of Zaragoza), María de Luna, 3, 50018, Zaragoza, Spain; Corresponding author.The Laser Furnace (LF) method has been applied to directionally solidify NiFe2O4 spinel disks from a mixture of Fe and Ni oxides in order to obtain uniform, dense targets for controlled synthesis of spinel nanoparticles via Laser Ablation. Application of a CO2 laser in Line Scan mode onto a sample with the desired stoichiometry, enabled melt processing above 1580 °C at its outer surface layer. This process was carried out inside a continuous roller furnace at a maximum volume temperature of 1000 °C. Such combination helps avoid excessive thermal stress, crack formation and catastrophic failure of these magnetic ceramic monoliths. Higher energy incubation values yield increased molten volumes and a thicker resolidified surface layer with a dense microstructure. Despite the high solidification rates imposed, NiFe2O4 spinel is the main phase obtained according to X-Ray Diffraction (XRD) and magnetization studies. LF processed samples exhibit a reduction of the coercive fields and an increase of the saturation magnetization values, evidence for soft ferromagnetism and characteristic of the magnetic behaviour associated with this spinel. This work demonstrates the convenience of the LF method for preparation of uniform, dense targets for Laser Ablation and other evaporation based techniques used in the fabrication of nanoparticles.http://www.sciencedirect.com/science/article/pii/S235284782030099XNiFe2O4 spinelLaser furnace processX-ray diffractionMagnetic properties |
| spellingShingle | B. Özçelik S. Özçelik H. Amaveda H. Santos C.J. Borrell R. Sáez-Puche G.F. de la Fuente L.A. Angurel High speed processing of NiFe2O4 spinel using a laser furnace Journal of Materiomics NiFe2O4 spinel Laser furnace process X-ray diffraction Magnetic properties |
| title | High speed processing of NiFe2O4 spinel using a laser furnace |
| title_full | High speed processing of NiFe2O4 spinel using a laser furnace |
| title_fullStr | High speed processing of NiFe2O4 spinel using a laser furnace |
| title_full_unstemmed | High speed processing of NiFe2O4 spinel using a laser furnace |
| title_short | High speed processing of NiFe2O4 spinel using a laser furnace |
| title_sort | high speed processing of nife2o4 spinel using a laser furnace |
| topic | NiFe2O4 spinel Laser furnace process X-ray diffraction Magnetic properties |
| url | http://www.sciencedirect.com/science/article/pii/S235284782030099X |
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