Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Standard

Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device. / von Moos, Lars; Nielsen, Kaspar Kirstein; Engelbrecht, Kurt; Bahl, Christian.

Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V. 2012.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Harvard

von Moos, L, Nielsen, KK, Engelbrecht, K & Bahl, C 2012, 'Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device'. in Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V.

APA

von Moos, L., Nielsen, K. K., Engelbrecht, K., & Bahl, C. (2012). Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device. In Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V.

CBE

von Moos L, Nielsen KK, Engelbrecht K, Bahl C. 2012. Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device. In Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V.

MLA

von Moos, Lars et al. "Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device". Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V. 2012.

Vancouver

von Moos L, Nielsen KK, Engelbrecht K, Bahl C. Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device. In Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V. 2012.

Author

von Moos, Lars; Nielsen, Kaspar Kirstein; Engelbrecht, Kurt; Bahl, Christian / Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device.

Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature: Thermag V. 2012.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Bibtex

@inbook{12159c4259d043b691b5929fffa75294,
title = "Experimental investigation of the effect of thermal hysteresis in MnFeP1-x Asx materials applied in an AMR device",
author = "{von Moos}, Lars and Nielsen, {Kaspar Kirstein} and Kurt Engelbrecht and Christian Bahl",
year = "2012",
booktitle = "Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature",

}

RIS

TY - GEN

T1 - Experimental investigation of the effect of thermal hysteresis in MnFeP<sub>1-x</sub> As<sub>x</sub> materials applied in an AMR device

A1 - von Moos,Lars

A1 - Nielsen,Kaspar Kirstein

A1 - Engelbrecht,Kurt

A1 - Bahl,Christian

AU - von Moos,Lars

AU - Nielsen,Kaspar Kirstein

AU - Engelbrecht,Kurt

AU - Bahl,Christian

PY - 2012

Y1 - 2012

N2 - <p>The magnetocaloric material series MnFeP1-xAsx, exhibiting a 1st order phase transition are possibly good candidates for magnetic refrigeration devices operating at room temperature (Brück et al., 2005). These materials have intrinsic hysteresis (thermal and magnetic) and the impact of this on magnetic refrigeration devices has not yet been thoroughly investigated in the literature.<br/> Here, the thermal hysteretic magnetocaloric properties are studied using vibrating sample magnetometry (VSM) and how this influences actual refrigeration performance, using an established active magnetic regenerator (AMR) test device (Bahl et al., 2008) with a flat plate regenerator of a single Curie temperature (TC) material.<br/> We find that the maximum adiabatic entropy change does not depend on the thermal history of the material, but the peak temperature is shifted 1.5 K for fields up to 1.5 T when measured at a constant field during heating or cooling. There is possibly an increase of the entropy change peak width of 0.3 K when cooling compared to heating. These results are confirmed by experiments on an AMR test device.</p>

AB - <p>The magnetocaloric material series MnFeP1-xAsx, exhibiting a 1st order phase transition are possibly good candidates for magnetic refrigeration devices operating at room temperature (Brück et al., 2005). These materials have intrinsic hysteresis (thermal and magnetic) and the impact of this on magnetic refrigeration devices has not yet been thoroughly investigated in the literature.<br/> Here, the thermal hysteretic magnetocaloric properties are studied using vibrating sample magnetometry (VSM) and how this influences actual refrigeration performance, using an established active magnetic regenerator (AMR) test device (Bahl et al., 2008) with a flat plate regenerator of a single Curie temperature (TC) material.<br/> We find that the maximum adiabatic entropy change does not depend on the thermal history of the material, but the peak temperature is shifted 1.5 K for fields up to 1.5 T when measured at a constant field during heating or cooling. There is possibly an increase of the entropy change peak width of 0.3 K when cooling compared to heating. These results are confirmed by experiments on an AMR test device.</p>

BT - Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature

T2 - Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature

ER -