Microstructure and Magnetic Properties of Melt-Spun Nd-Rich Nd-Fe Alloys


The result of composition on the magnetic properties and microstructure of Nd-made Nd-Fe alloys prepared by melt-spinning were investigated. Many magnetic phases with ordering temperatures at about ten, 37, forty eight, and 420-480 K were detected from the temperature dependence of magnetization. The primary transition is because of the presence of the double-hexagonal-shut-packed Nd phase. The magnetic transitions at thirty seven and forty eight K might be connected to the face-targeted-cubic Nd-based section and the Nd-made nanocrystals. The high-temperature ferromagnetic-paramagnetic transitions at 420-480 K could be connected with the amorphous-like Fe-Nd section enriched in Fe, which is observed by transmission electron microscopy in the intergranular regions. At temperatures below 100 K, the magnetization of the Nd-Fe ribbons didn't saturate in a very magnetic field as high as 7200 kA/m. The correlations between the microstructure and coercivity of the Nd-rich Nd-Fe ribbons are discussed.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :Microstructure Design Method for Multineedle Whisker Radar Absorbing MaterialABSTRACT:Multineedle whisker radar absorbing material (RAM) could be a new quite stealth nanocomposite, whose radar absorbing property
PROJECT TITLE :Role of Microstructure and Doping on the Mechanical Strength and Toughness of Polysilicon Thin FilmsABSTRACT:The role of microstructure and doping on the mechanical strength of microscale tension specimens of columnar
PROJECT TITLE :Tuning of Microstructure and Magnetic Properties of Nanocrystalline NdFeB Permanent Magnets Prepared by Spark Plasma SinteringABSTRACT:Structure and magnetic properties were studied for bulk nanocrystalline isotropic
PROJECT TITLE :Microstructure from joint analysis of experimental data and ab initio interactions: Hydrogenated amorphous siliconABSTRACT:A study of the formation of voids and molecular hydrogen in hydrogenated amorphous silicon
PROJECT TITLE : Distributed Mobile Sink Routing for Wireless Sensor Networks A Survey - 2014 ABSTRACT: The concentration of data traffic towards the sink in a wireless sensor network causes the nearby nodes to deplete their

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry