Structural, microstructural and magnetocaloric investigations in high-energy ball milled powders

Enhancement of the magnetic refrigerant capacity in partially amorphous Fe70Zr30 powders obtained by mechanical alloying

“…Temperature increase beyond 400 K has been avoided in order to prevent sample evolution as commented before. Similar values <100 J/kg at H ¼ 1.5 T were found for other partially amorphous Fe based alloys obtained by ball milling [7,8], which are comparable or even superior to other alloy systems [17,18].…”

Influence of Co addition on the magnetic properties and magnetocaloric effect of Nanoperm (Fe1−XCoX)75Nb10B15 type alloys prepared by mechanical alloying

“…It can be observed a trend to increase for RC FWMM as X C decreases. The maximum values obtained for RC FWHM are 102 and 91 ± 5 J kg −1 for Co15 and Co30, respectively, larger than those found in the literature for biphasic nanocrystalline powders Ni-Mn-Ga [31].…”

Magnetic entropy change in bulk nanocrystalline Gd metals

“…Considerable investigations indicate that the nanostructured materials are very promising candidates for potential application in the magnetic refrigeration (Zhang et al 2001;Tanaka et al 2001;Hueso et al 2002;Provenzanoa et al 2003;Shir et al 2003;Kinoshita et al 2004;Evangelisti et al 2005;Poddar et al 2006;Gómez-Polo et al 2007;Ma et al 2007;Baldomir et al 2007;Franco et al 2007;škorvánek et al 2007;Poddar et al 2007;Biswas et al 2008;Franco et al 2008;Gorsse et al 2008;Li 2008;Gass et al 2008;Lu et al 2008;Santanna et al 2008;Serantes et al 2008;Pekała and Drozd 2008;Juan and Gui 2009;Gorria et al 2009;Phan et al 2009;Babita et al 2009;Calderon-Ortiz et al 2009;Das et al 2009;Phan et al 2010;Burianova et al 2010;Nelson et al 2002). However, up to now, not much effort has been devoted to the rare earth bulk nanocrystalline metals.…”