Title :
Magnetocaloric behavior of Fe-Ni-Mn nanoparticies
Author :
Chaudhary, Varun ; Chaturvedi, Apoorva ; Ramanujan, Raju V.
Author_Institution :
Interdiscipl. Grad. Sch., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We have studied the magnetocaloric effect in high energy ball milled (Fe70Ni30)95Mn5 alloy nanoparticles. The partial substitution of Fe and Ni by Mn decreases the Curie temperature of the alloy to near room temperature (338 K). Relative cooling power (RCP) increases from 26 to 470 J-kg-1 for a field change of 0.5 and 5 T, respectively, these values are comparable to the benchmark magnetocaloric material, gadolinium.
Keywords :
Curie temperature; ball milling; cooling; iron alloys; magnetic particles; magnetocaloric effects; manganese alloys; nanoparticles; nickel alloys; Curie temperature; FeNiMn; high energy ball milled alloy nanoparticles; magnetocaloric materials; relative cooling power; temperature 293 K to 298 K; Amorphous magnetic materials; Cooling; Magnetic hysteresis; Magnetosphere; Metals; Nanoparticles; Iron alloy; Magnetocaloric effect; Nanoparticles; Relative cooling power;
Conference_Titel :
Magnetics Symposium 2014 - Celebrating 50th Anniversary of IEEE Magnetics Society (MSSC50)
Conference_Location :
Singapore
DOI :
10.1109/MSSC.2014.6947685