Электронный каталог

Статья

Avdeev, M.V.
Morphology and Kinetics of Nanoheterogeneities in Fe&sub(81)Ga&sub(19)–Tb Alloy: A Small-Angle Neutron Scattering Study / M.V.Avdeev, A.M.Balagurov, I.S.Golovin // Physica B [Electronic resource]. – 2024. – Vol. 685. – P. 416052. – URL: https://doi.org/10.1016/j.physb.2024.416052. – Bibliogr.: 27.

The formation of nanoprecipitates in the Fe&sub(81)Ga&sub(19) alloy doped with Tb (~0.1 at. %) was studied by small-angle neutron scattering (SANS). Measurements at room temperature for several samples pre-aged at a fixed temperature in the range of (300–700)&sup(o)C revealed a dilute system of precipitates with a characteristic size at nanoscale (<1000 Å) growing with an increase in ageing temperature. In situ measurements during isothermal ageing at 300 &sup(o)C for 3 h revealed fast (order of 10 min) formation of precipitates. SANS analysis is consistent with the results of neutron diffraction experiments, which suggest the microstructure of this alloy as a matrix of disordered atomic structure (A2 phase) with embedded precipitates of the structurally and magnetically ordered D0&sub(3) phase



Спец.(статьи,препринты) = С 342 г1 - Замедление и диффузия нейтронов. Дифракция
Спец.(статьи,препринты) = С 33 а - Нанофизика. Нанотехнология$
ОИЯИ = ОИЯИ (JINR)2024
Бюллетени = 33/024