Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2015

Volume:

8

Number:

4

ISSN:

1829-1171

Official URL:

Corporate Creators:

Centre of Excellence in Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore – 54590, Pakistan ; School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing– 210094, China

Coverage:

185-190

Abstract:

Hard magnetic material ‘Nd2Fe14B1’ was synthesized via powder metallurgy technique and studied for its structural and magnetic properties. The prepared sample was sintered at different temperatures and characterized by XRD, Optical Microscope and vibrating sample magnetometer (VSM). The crystal structure, phase composition and crystallite size were determined with the help of data obtained from XRD. The tetragonal crystal structure of Nd2Fe14B1 was confirmed with lattice parameters ‘a’ = 8.795 Å and ‘c’ = 12.225 Å. The crystallite size of the samples was decreased from 58.3 nm to 43.7 nm with increase in sintering temperature from 700°C to 720°C. The micro structural observations showed that the grains were smoothly and uniformly distributed, resulting in an enhancement of valuable mechanical properties of the materials. Saturation magnetization (Ms) and coercivity (Hc) of Nd2Fe14B1 were increased with increase in sintering temperature, due to decrease in crystallite size, making the materials more suitable candidate for various industrial uses including in voice coil motors and electric and hybrid electric vehicles.

Date created:

2015-12-06

Format:

pdf

Identifier:

oai:arar.sci.am:23412

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան