Boron addition in MnFe(P,Si) magnetocaloric materials: interstitial vs . substitutional scenarii

Autor:	H. Yibole, Ekkes Brück, Francois Guillou, G. Porcari
Rok vydání:	2014
Předmět:	Work (thermodynamics) Materials science chemistry Cell volume Metallurgy Intercalation (chemistry) Magnetic refrigeration Curie chemistry.chemical_element Thermodynamics Condensed Matter Physics Boron Cell parameter
Zdroj:	physica status solidi c. 11:1007-1010
ISSN:	1610-1642 1862-6351
DOI:	10.1002/pssc.201300569
Popis:	The addition of boron in MnFe(P,Si) materials has been studied by considering two possibilities: an interstitial intercalation or a substitutional approach. A cell volume decrease with “extra” B addition is observed which is incompatible with an interstitial scenario. On the contrary, the evolutions of the cell volume, ratio of the cell parameter and Curie temperatures are found to be well consistent with the values already reported for the substitution of phosphorous by boron in the parent Fe2P1-xBx compound. This work sheds light on the possibility to achieve a fine tuning of the magnetic and magnetocaloric properties of MnFe(P,Si) materials by involving a new parameter: boron substitution. (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
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