Muhamad Faiz Md Din

By Muhamad Faiz Md Din, Jianli Wang and Mohd Taufiq Ishak

Soft ferromagnetic cubic NaZn13-type La0.7Pr0.3Fe11.4Si1.6 has turned out to be a standout amongst the most fascinating compounds for investigating substantial magnetocaloric effect (MCE) on the grounds that the attractive properties of this compound shows large enough spontaneous magnetization for applications, strongly doping dependent, and as well as delicate soft ferromagnetism. These impacts can be attributed to the itinerant electron metamagnetic (IEM) transition especially around the first-order magnetic transition region. However, this compound is difficult to frame by the basic cementing process because of the inherent deficiency of the peritectic response, Υ-Fe + La → La(Fe,Si)13(τ1a), which frequently brings about a blended microstructure of α-Fe + La(Fe,Si)13(τ1a) + LaFeSi(τ4). Additionally, dependability of La(FexSi1−x)13 is no middle-of-the-road stage and common solvency amongst Fe and La in the Fe-La framework as a reality is represented by response dispersion as indicated by magnetic and electronic states’ contribution. From this point of view, the structure, attractive properties and MCE of this compound have been talked about in detail as indicated by various temperatures and times of the annealing treatment. In addition, efficiently contemplating on the doping impact from various concentrations of transition metal elements such as Copper (Cu) and Chromium (Cr) on Iron (Fe) in the La0.7Pr0.3Fe11.4Si1.6 compound is likewise discussed.

Part of the book: Intermetallic Compounds