Výsledky vyhledávání - "K. El Maalam"

Assessment of near Pr2/3Sr1/3MnO3 oxide in magnetic cooling

Autor: K. El Maalam, Omar Mounkachi, P. de Rango, A. El Boukili, Mohamed Balli, O. Chdil

Publikováno v: International Journal of Refrigeration. 133:302-312

In this work, we report a detailed study of the thermodynamic performance of Pr 0.6 Sr 0.4 MnO 3 in a functional magnetic cooling system up to the theoretical limit of its magnetocaloric effect. For this purpose, a one-dimensional numerical model of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09241811175cec6f202dc519894fd404
https://doi.org/10.1016/j.ijrefrig.2021.10.005

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Akademický článek

Magnetocaloric effect and electrical properties of (0.95)La0.45Nd0.25Sr0.3MnO3/(0.05)CuO composites

Autor: L Fkhar, K El Maalam, M Hamedoun, A El Kenz, A Benyoussef, P Lachkar, E-K Hlil, A Mahmoud, F Boschini, M Ait Ali, O Mounkachi

Publikováno v: Materials Research Express, Vol 7, Iss 6, p 066102 (2020)

In this work, the structural, magnetic and magnetocaloric properties of 0.95La _0.45 Nd _0.25 Sr _0.3 MnO _3 /0.05CuO composites materials were investigated. The samples have been synthesized by solid-state reaction route. The XRD patterns of composi

Externí odkaz: https://doaj.org/article/2fe90ba84e3e4f23a9545765bfe60925

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Akademický článek

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Akademický článek

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Depicting the roles of CuO secondary phase and heat treatment in driving the magnetic and magnetocaloric features of Pr2∕3Sr1∕3MnO3 manganite

Autor: O. Chdil, M. Balli, N. Brahiti, R. Essehli, P. de Rango, P. Fournier, S. Naamane, K. El Maalam, O. Mounkachi

Publikováno v: Journal of Alloys and Compounds. 925:166639

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3e117c714a1da53b9d431f6e0efb5e0
https://doi.org/10.1016/j.jallcom.2022.166639

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A study of magnetic and magnetocaloric properties of 0.95 (La0.45Nd0.25Sr0.3MnO3)/0.05CuO composites prepared by spray drying

Autor: Abdelilah Benyoussef, M. Hamedoun, K. El Maalam, L. Fkhar, Mohamed Balli, Audrey Schrijnemakers, E.K. Hlil, Abdelfattah Mahmoud, Frédéric Boschini, M. Ait Ali, Omar Mounkachi

Publikováno v: Inorganic Chemistry Communications
Inorganic Chemistry Communications, Elsevier, 2020, 119, pp.108129. ⟨10.1016/j.inoche.2020.108129⟩

This study presents an investigation of the structural, magnetic and magnetocaloric properties of the 0.95(La0.45Nd0.25)Sr0.3MnO3/0.05CuO polycrystalline composite. The investigated composite materials are elaborated by combining both solid-state rea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f90fc8539117824b6f0dec9dabf304fe
https://hal.archives-ouvertes.fr/hal-02970248

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Magnetocaloric effect and electrical properties of (0.95)La 0.45 Nd 0.25 Sr 0.3 MnO 3 /(0.05)CuO composites

Autor: L. Fkhar, Frédéric Boschini, K. El Maalam, M. Hamedoun, M. Ait Ali, A. El Kenz, E.K. Hlil, Abeer E. Mahmoud, Omar Mounkachi, A. Benyoussef, P. Lachkar

Publikováno v: Materials Research Express
Materials Research Express, IOP Publishing Ltd, 2020, 7 (6), pp.066102. ⟨10.1088/2053-1591/ab9c62⟩

In this work, the structural, magnetic and magnetocaloric properties of 0.95La0.45Nd0.25Sr0.3MnO3/0.05CuO composites materials were investigated. The samples have been synthesized by solid-state reaction route. The XRD patterns of composites powders

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a68b8d82818b4ec6a1dea08f1af39d5
https://hal.archives-ouvertes.fr/hal-02970243

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Influence of synthesis methods with low annealing temperature on the structural and magnetic properties of CoFe2O4 nanopowders for permanent magnet application

Autor: K. El Maalam, M. Hamedoun, E.K. Hlil, Omar Mounkachi, B. Abraime, L. Fkhar, A. El Kenz, Abdelfattah Mahmoud, M. Ait Tamerd, Frédéric Boschini, Abdelilah Benyoussef, M. Ait Ali

Publikováno v: Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 500, pp.166416. ⟨10.1016/j.jmmm.2020.166416⟩

Cobalt ferrite nanopowders were prepared with low annealing temperatures (400 °C and 600 °C) using four different synthesis methods: co-precipitation, sol-gel, sol-gel autocombustion and microemulsion. The pure phase is obtained in all the samples

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff6634bf23b6935cd98ce9085349051d
https://hal.archives-ouvertes.fr/hal-02455636

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