Հրապարակման մանրամասներ:

Established in 2008

Ամսագրի կամ հրապարակման վերնագիր:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Հրապարակման ամսաթիւ:

2015

Հատոր:

8

Համար:

4

ISSN:

1829-1171

Պաշտոնական URL:

Համատեղ հեղինակները:

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

Ծածկոյթ:

185-190

Ամփոփում:

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.

Ստեղծման ամսաթիւը:

2015-12-06

Ձեւաչափ:

pdf

Նոյնացուցիչ:

oai:arar.sci.am:23412

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