Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion

LaFe<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mrow><mn>13</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Si<inline-formula&g...

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Main Authors: Valérie Paul-Boncour, Lotfi Bessais
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Magnetochemistry
Subjects:
Online Access:https://www.mdpi.com/2312-7481/7/1/13
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author Valérie Paul-Boncour
Lotfi Bessais
author_facet Valérie Paul-Boncour
Lotfi Bessais
author_sort Valérie Paul-Boncour
collection DOAJ
description LaFe<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mrow><mn>13</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Si<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula> compounds exhibit a giant magnetocaloric effect and they are considered as a good magnetocaloric working substance for an environmentally friendly cooling technique. Nevertheless as the Curie temperature <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula> is around 200 K, it is necessary to tune <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula> near room temperature for magnetic refrigeration. In this work we present a review of the various methods of synthesis and shaping of the LaFe<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mrow><mn>13</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Si<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula> type compounds as well as the influence of chemical substitution, light element insertion or combination of both on <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula>, magnetic entropy and adiabatic temperature variation (<inline-formula><math display="inline"><semantics><mrow><mo>Δ</mo><msub><mi>S</mi><mi mathvariant="normal">M</mi></msub></mrow></semantics></math></inline-formula> and <inline-formula><math display="inline"><semantics><mrow><mo>Δ</mo><msub><mi>T</mi><mi>ad</mi></msub></mrow></semantics></math></inline-formula>), and stability upon cycling. The advantages and drawbacks of each method of preparation and type of element substitution/insertion are discussed. The implementation of these NaZn<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>13</mn></msub></semantics></math></inline-formula> type materials in active magnetic refrigerator is presented and their performances are compared to that of Gd in prototypes.
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spelling doaj.art-99a41644c8a54cd78dd5eb2aad65b5912023-12-03T13:10:53ZengMDPI AGMagnetochemistry2312-74812021-01-01711310.3390/magnetochemistry7010013Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element InsertionValérie Paul-Boncour0Lotfi Bessais1Univ Paris Est Creteil, CNRS, ICMPE, UMR 7182, 2 rue Henri Dunant, 94320 Thiais, FranceUniv Paris Est Creteil, CNRS, ICMPE, UMR 7182, 2 rue Henri Dunant, 94320 Thiais, FranceLaFe<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mrow><mn>13</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Si<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula> compounds exhibit a giant magnetocaloric effect and they are considered as a good magnetocaloric working substance for an environmentally friendly cooling technique. Nevertheless as the Curie temperature <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula> is around 200 K, it is necessary to tune <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula> near room temperature for magnetic refrigeration. In this work we present a review of the various methods of synthesis and shaping of the LaFe<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mrow><mn>13</mn><mo>−</mo><mi>x</mi></mrow></msub></semantics></math></inline-formula>Si<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula> type compounds as well as the influence of chemical substitution, light element insertion or combination of both on <inline-formula><math display="inline"><semantics><msub><mi>T</mi><mi>C</mi></msub></semantics></math></inline-formula>, magnetic entropy and adiabatic temperature variation (<inline-formula><math display="inline"><semantics><mrow><mo>Δ</mo><msub><mi>S</mi><mi mathvariant="normal">M</mi></msub></mrow></semantics></math></inline-formula> and <inline-formula><math display="inline"><semantics><mrow><mo>Δ</mo><msub><mi>T</mi><mi>ad</mi></msub></mrow></semantics></math></inline-formula>), and stability upon cycling. The advantages and drawbacks of each method of preparation and type of element substitution/insertion are discussed. The implementation of these NaZn<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>13</mn></msub></semantics></math></inline-formula> type materials in active magnetic refrigerator is presented and their performances are compared to that of Gd in prototypes.https://www.mdpi.com/2312-7481/7/1/13intermetallicsNaZn<sub>13</sub> compoundsmagnetocaloric effectmagnetic refrigeration
spellingShingle Valérie Paul-Boncour
Lotfi Bessais
Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
Magnetochemistry
intermetallics
NaZn<sub>13</sub> compounds
magnetocaloric effect
magnetic refrigeration
title Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
title_full Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
title_fullStr Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
title_full_unstemmed Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
title_short Tuning the Magnetocaloric Properties of the La(Fe,Si)<sub>13</sub> Compounds by Chemical Substitution and Light Element Insertion
title_sort tuning the magnetocaloric properties of the la fe si sub 13 sub compounds by chemical substitution and light element insertion
topic intermetallics
NaZn<sub>13</sub> compounds
magnetocaloric effect
magnetic refrigeration
url https://www.mdpi.com/2312-7481/7/1/13
work_keys_str_mv AT valeriepaulboncour tuningthemagnetocaloricpropertiesofthelafesisub13subcompoundsbychemicalsubstitutionandlightelementinsertion
AT lotfibessais tuningthemagnetocaloricpropertiesofthelafesisub13subcompoundsbychemicalsubstitutionandlightelementinsertion