| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:04 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Solid State Physics and Materials Science
Title:
Neutron Diffraction Study of Magnetic Phases and Interactions in Fe- Cu Pseudoalloy
Authors:
C. Oprea(1), A. I. Beskrovnyi(1), A. I. Oprea(1), P. Butorin(1), S. Vasilovsky(1)
M. Codescu(2), I. Ion(2), Wilhelm Kappel(2), N. Stancu(2)
Affiliation:
(1)Frank Laboratory of Neutron Physics, JINR, 141980 Dubna, RF
(2)INCDIE ICPE – Advanced Research, 74204 Bucharest, Romania
E-mail
Keywords:
Abstract:
The research project proposes the preparation of an amorphous or quasi-amorphous structure in the Fe - Cu system, at which the crystallization of the cubic phase bcc should be controlled by an external magnetic field at a temperature below the Curie point of the ferromagnetic phase, in such a way inducing to the formed particles a form anisotropy.
The neutron diffraction has been found to be an appropriate technique to investigate the mechanical properties of the Fe – Cu nanoalloy. The neutron diffraction spectra of the measured samples were obtained by TOF method on the DN-2 Neutron Diffractometer installed on the channel two of the IBR-2 reactor.
We determined the microstructure characteristics of the Fe - Cu a-phase in dependence of the latice parameters for the investigated samples.
The investigated Fe - Cu composite, that was characterized by neutron diffraction, will be the starting material for a new class of permanent magnets.
|
|
|
|