Phase transformation and crystallization kinetics of Te67.5Ga2.5As30 amorphous alloy

Phase transformation and crystallization kinetics of Te67.5Ga2.5As30 amorphous alloy

Research Abstract
The amorphoustocrystallinetransformationinTe67.5Ga2.5As30 occurs undernon-isothermalcondi- tions. Thecrystallizationparametersofthisamorphousmaterialareestimatedusingdifferential scanningcalorimetery(DSC).Theactivationenergyofcrystallization(Ec) andthefrequencyfactor(K0) are calculatedtobe113.1671.5 kJ/moland1.041010731.70 s1, respectively.Thecrystallization mechanismisfoundtobeone-dimensionalgrowthmechanismasindicatedfromtheestimatedAvrami exponentvalue.X-rayinvestigationsconfirmtheamorphousphaseandcrystallinestatefortheas- preparedandannealedsamples,respectively.Thecrystallizedgrainsizesofnanoscalearecalculated from theXRDpeaks.
Research Authors
Mostafa I.Abd-Elrahman , MohmmedM.Hafiz
Research Department
Department of physics
Research Journal
Physica B
Research Member
Mohamed Mahmoud Hafiz Mohamed
Research Pages
PP.53–56
Research Rank
1
Research Vol
Vol.410
Research Year
2013