High relative cooling power iron based magnetocaloric nanoparticles

V. Chaudhary; X. Chen; D. V.Maheswar Repaka; A. Chaturvedi; Z. Wang; R. V. Ramanujan

High relative cooling power iron based magnetocaloric nanoparticles

V. Chaudhary, X. Chen, D. V.Maheswar Repaka, A. Chaturvedi, Z. Wang, R. V. Ramanujan

Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report in-situ high temperature X-ray diffraction and magnetocaloric measurements for (Fe₇₀Ni₃₀)₉₂Mn₈ alloy nanoparticles. At room temperature (RT), a mixture of α-FeNiMn and amorphous phase was observed, followed by transformation to the γ-FeNiMn phase at ∼ 573 K. During cooling from 973 K to RT, the cell volume contracted, and the γ-FeNiMn phase was retained at RT. These nanoparticles show a moderate change in magnetic entropy and high relative cooling power.

Original language	English
Title of host publication	6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014
Editors	Andrew Rowe
Publisher	International Institute of Refrigeration
Pages	21-22
Number of pages	2
ISBN (Electronic)	9782362150074
Publication status	Published - 2011
Externally published	Yes
Event	6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014 - Victoria, Canada Duration: Sept 7 2014 → Sept 10 2014

Publication series

Name	Refrigeration Science and Technology
Volume	2011-January
ISSN (Print)	0151-1637

Conference

Conference	6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014
Country/Territory	Canada
City	Victoria
Period	9/7/14 → 9/10/14

ASJC Scopus Subject Areas

Control and Systems Engineering
Electrical and Electronic Engineering
Mechanical Engineering
Condensed Matter Physics

Cite this

Chaudhary, V., Chen, X., Repaka, D. V. M., Chaturvedi, A., Wang, Z., & Ramanujan, R. V. (2011). High relative cooling power iron based magnetocaloric nanoparticles. In A. Rowe (Ed.), 6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014 (pp. 21-22). (Refrigeration Science and Technology; Vol. 2011-January). International Institute of Refrigeration.

@inproceedings{0355e0a489fc4c56b2b2eaa925fc8931,

title = "High relative cooling power iron based magnetocaloric nanoparticles",

abstract = "We report in-situ high temperature X-ray diffraction and magnetocaloric measurements for (Fe70Ni30)92Mn8 alloy nanoparticles. At room temperature (RT), a mixture of α-FeNiMn and amorphous phase was observed, followed by transformation to the γ-FeNiMn phase at ∼ 573 K. During cooling from 973 K to RT, the cell volume contracted, and the γ-FeNiMn phase was retained at RT. These nanoparticles show a moderate change in magnetic entropy and high relative cooling power.",

author = "V. Chaudhary and X. Chen and Repaka, {D. V.Maheswar} and A. Chaturvedi and Z. Wang and Ramanujan, {R. V.}",

year = "2011",

language = "English",

series = "Refrigeration Science and Technology",

publisher = "International Institute of Refrigeration",

pages = "21--22",

editor = "Andrew Rowe",

booktitle = "6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014",

note = "6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014 ; Conference date: 07-09-2014 Through 10-09-2014",

}

Chaudhary, V, Chen, X, Repaka, DVM, Chaturvedi, A, Wang, Z & Ramanujan, RV 2011, High relative cooling power iron based magnetocaloric nanoparticles. in A Rowe (ed.), 6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014. Refrigeration Science and Technology, vol. 2011-January, International Institute of Refrigeration, pp. 21-22, 6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014, Victoria, Canada, 9/7/14.

High relative cooling power iron based magnetocaloric nanoparticles. / Chaudhary, V.; Chen, X.; Repaka, D. V.Maheswar et al.
6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014. ed. / Andrew Rowe. International Institute of Refrigeration, 2011. p. 21-22 (Refrigeration Science and Technology; Vol. 2011-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - High relative cooling power iron based magnetocaloric nanoparticles

AU - Chaudhary, V.

AU - Chen, X.

AU - Repaka, D. V.Maheswar

AU - Chaturvedi, A.

AU - Wang, Z.

AU - Ramanujan, R. V.

PY - 2011

Y1 - 2011

N2 - We report in-situ high temperature X-ray diffraction and magnetocaloric measurements for (Fe70Ni30)92Mn8 alloy nanoparticles. At room temperature (RT), a mixture of α-FeNiMn and amorphous phase was observed, followed by transformation to the γ-FeNiMn phase at ∼ 573 K. During cooling from 973 K to RT, the cell volume contracted, and the γ-FeNiMn phase was retained at RT. These nanoparticles show a moderate change in magnetic entropy and high relative cooling power.

AB - We report in-situ high temperature X-ray diffraction and magnetocaloric measurements for (Fe70Ni30)92Mn8 alloy nanoparticles. At room temperature (RT), a mixture of α-FeNiMn and amorphous phase was observed, followed by transformation to the γ-FeNiMn phase at ∼ 573 K. During cooling from 973 K to RT, the cell volume contracted, and the γ-FeNiMn phase was retained at RT. These nanoparticles show a moderate change in magnetic entropy and high relative cooling power.

UR - http://www.scopus.com/inward/record.url?scp=84962484204&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84962484204&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84962484204

T3 - Refrigeration Science and Technology

SP - 21

EP - 22

BT - 6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014

A2 - Rowe, Andrew

PB - International Institute of Refrigeration

T2 - 6th IIR/IIF International Conference on Magnetic Refrigeration at Room Temperature, THERMAG 2014

Y2 - 7 September 2014 through 10 September 2014

ER -

High relative cooling power iron based magnetocaloric nanoparticles

Abstract

Publication series

Conference

ASJC Scopus Subject Areas

Other files and links

Fingerprint

Cite this