FMR study of crystallization in the amorphous alloy Co65Fe4Ni2Si15B14 (Metglas 2714A) |
| |
| Affiliation: | 1. Departamento de Engenharia Mecânica e de Materiais, Instituto Militar de Engenharia, 22290-270 Rio de Janeiro, RJ, Brazil;2. Instituto de F??sica, Universidade do Estado do Rio de Janeiro, 20550-013 Rio de Janeiro, RJ, Brazil;1. Xi''an University of Post and Telecommunications, Xi''an, 710121, China;2. Xi''an Innovation College of Yan''an University, Xi''an, 710100, China;1. Physics Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;2. Physics Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt;3. Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;4. Nanoscience Laboratory for Environmental and Bio-Medical Applications (NLEBA), Semiconductor Lab., Department of Physics, Faculty of Education, Ain Shams University, Roxy, 11757 Cairo, Egypt;5. Physics Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt;1. Indian Institute of Geomagnetism, New Panvel, Navi Mumbai 410218, India;2. Department of Physics, University of Mumbai, Santacruz, Mumbai 400098, India;3. Equatorial Geophysical Research Laboratory, Tirunelveli 627011, India;4. Goddard Space Flight Center, NASA, MD 20771, USA |
| |
| Abstract: | The ferromagnetic resonance technique was used to study the annealing behavior of the metallic glass Co65Fe4Ni2Si15B14 (Metglas 2714A). The peak-to-peak FMR linewidth, ΔHpp, was measured at room temperature and 9.5 GHz for three isothermal annealing times in the temperature range 737–757 K. The transformed fraction, as derived from FMR data, satisfies the Johnson–Mehl–Avrami equation with the exponent n between 0.98 and 1.00. The activation energy for crystallization is estimated from the times to ΔHpp=25–35 mT to to be 199 kJ mol?1. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
