Počet záznamů: 1

Thermally induced crystallization of amorphous Fe40Ni40P14B6 alloy

SYSNO ASEP	0449814
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Thermally induced crystallization of amorphous Fe40Ni40P14B6 alloy
Tvůrce(i)	Vasić, M. (RS) Blagojević, V. A. (RS) Begović, N. N. (RS) Žák, Tomáš (UFM-A)_RID Pavlović, V. B. (RS) Minić, Dragica M. (RS)
Celkový počet autorů	6
Zdroj.dok.	Thermochimica Acta. - : Elsevier - ISSN 0040-6031 Roč. 614, AUG (2015), s. 129-136
Poč.str.	8 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	Amorphous alloy ; Crystallization ; Kinetics ; Deconvolution ; Impingement ; Surface morphology
Vědní obor RIV	BM - Fyzika pevných látek a magnetismus
CEP	ED1.1.00/02.0068 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Institucionální podpora	UFM-A - RVO:68081723
UT WOS	000358809900018
EID SCOPUS	84933524732
DOI	10.1016/j.tca.2015.06.015
Anotace	The crystallization mechanism and kinetics of Fe40Ni40P14B6 amorphous alloy were studied under non-isothermal conditions. Thermal stabilization of this alloy manifests in DSC through two complex peaks, corresponding to crystallization and recrystallization, respectively. The complex crystallization DSC peak was deconvoluted into individual steps corresponding to crystallization of individual phases, where the results using both Gaussian-Lorentzian cross-product and Fraser-Suzuki function were compared. It was determined that the values of kinetic triplets of the individual steps did not exhibit any significant difference, depending on the deconvolution function. Anisotropic growth was indicated to be the prevailing type of impingement for all crystallization steps. Using the calculated values of the respective kinetic triplets and the mechanisms determined from the value of Avrami exponent, distinct values of activation energies for nucleation and crystal growth for crystallization of each individual phase were calculated, showing significantly higher values for nucleation than those for crystal growth. Alloy samples treated non-isothermally in the DSC cell exhibit inhomogeneous surface morphology with highly granulated structure dependent on heating rate.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2016

Počet záznamů: 1