MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM
A study of the magnetocaloric effect (MCE) of Barium-Strontium-Ferrites BaO•SrO•xFe2O3 and BaO•SrO•xFe3O4 (x=5.6, 5.8, 6) is reported in this article. Using hematite of analytical grade and magnetite from Cox’s Bazar beach sand mineral as ferrite contents, the hexaferrites were synthesized and their...
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| Format: | Article |
| Language: | English |
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Politehnium Publishing House
2018-12-01
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| Series: | European Journal of Materials Science and Engineering |
| Subjects: | |
| Online Access: | http://ejmse.tuiasi.ro/articles/EJMSE_03_04_04_Habiba.pdf |
| _version_ | 1819135347065356288 |
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| author | Ummay HABIB Sheikh Manjura HOQUE Samia Islam LIBA Hasan Khaled ROUF |
| author_facet | Ummay HABIB Sheikh Manjura HOQUE Samia Islam LIBA Hasan Khaled ROUF |
| author_sort | Ummay HABIB |
| collection | DOAJ |
| description | A study of the magnetocaloric effect (MCE) of Barium-Strontium-Ferrites BaO•SrO•xFe2O3 and BaO•SrO•xFe3O4 (x=5.6, 5.8, 6) is reported in this article. Using hematite of analytical grade and magnetite from Cox’s Bazar beach sand mineral as ferrite contents, the hexaferrites were synthesized and their magnetic properties and MCE were systematically studied. The results indicate that the samples are strongly ferromagnetic and have high Curie temperature. All the samples are of second-ordered phase and exhibit large magnetic entropy changes. Among all the samples BaO•SrO•5.8Fe2O3 and BaO•SrO•5.8Fe3O4 exhibit the maximum entropy changes at the temperatures near and below the Curie temperature. |
| first_indexed | 2024-12-22T10:17:38Z |
| format | Article |
| id | doaj.art-e6913ee81f0442119a09ea43ce668c69 |
| institution | Directory Open Access Journal |
| issn | 2537-4338 2537-4346 |
| language | English |
| last_indexed | 2024-12-22T10:17:38Z |
| publishDate | 2018-12-01 |
| publisher | Politehnium Publishing House |
| record_format | Article |
| series | European Journal of Materials Science and Engineering |
| spelling | doaj.art-e6913ee81f0442119a09ea43ce668c692022-12-21T18:29:43ZengPolitehnium Publishing HouseEuropean Journal of Materials Science and Engineering2537-43382537-43462018-12-0134195202MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEMUmmay HABIB0Sheikh Manjura HOQUE1Samia Islam LIBA2Hasan Khaled ROUF3Department of Electrical & Electronic Engineering, University of Chittagong, Chittagong – 4331, BangladeshMaterial Science Division, Bangladesh Atomic Energy Centre, Ramna, Dhaka, BangladeshMaterial Science Division, Bangladesh Atomic Energy Centre, Ramna, Dhaka, BangladeshDepartment of Electrical & Electronic Engineering, University of Chittagong, Chittagong – 4331, BangladeshA study of the magnetocaloric effect (MCE) of Barium-Strontium-Ferrites BaO•SrO•xFe2O3 and BaO•SrO•xFe3O4 (x=5.6, 5.8, 6) is reported in this article. Using hematite of analytical grade and magnetite from Cox’s Bazar beach sand mineral as ferrite contents, the hexaferrites were synthesized and their magnetic properties and MCE were systematically studied. The results indicate that the samples are strongly ferromagnetic and have high Curie temperature. All the samples are of second-ordered phase and exhibit large magnetic entropy changes. Among all the samples BaO•SrO•5.8Fe2O3 and BaO•SrO•5.8Fe3O4 exhibit the maximum entropy changes at the temperatures near and below the Curie temperature.http://ejmse.tuiasi.ro/articles/EJMSE_03_04_04_Habiba.pdfmagnetocaloric effectshexaferritesferromagnetismmagnetic entropy |
| spellingShingle | Ummay HABIB Sheikh Manjura HOQUE Samia Islam LIBA Hasan Khaled ROUF MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM European Journal of Materials Science and Engineering magnetocaloric effects hexaferrites ferromagnetism magnetic entropy |
| title | MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM |
| title_full | MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM |
| title_fullStr | MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM |
| title_full_unstemmed | MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM |
| title_short | MAGNETOCALORIC EFFECTS OF BARIUM-STRONTIUM FERRITES FOR MAGNETIC REFRIGERATION SYSTEM |
| title_sort | magnetocaloric effects of barium strontium ferrites for magnetic refrigeration system |
| topic | magnetocaloric effects hexaferrites ferromagnetism magnetic entropy |
| url | http://ejmse.tuiasi.ro/articles/EJMSE_03_04_04_Habiba.pdf |
| work_keys_str_mv | AT ummayhabib magnetocaloriceffectsofbariumstrontiumferritesformagneticrefrigerationsystem AT sheikhmanjurahoque magnetocaloriceffectsofbariumstrontiumferritesformagneticrefrigerationsystem AT samiaislamliba magnetocaloriceffectsofbariumstrontiumferritesformagneticrefrigerationsystem AT hasankhaledrouf magnetocaloriceffectsofbariumstrontiumferritesformagneticrefrigerationsystem |