منابع مشابه
Monte-Carlo simulations of spinodal ordering and decomposition in compositionally modulated alloys
The early-stage kinetics of interdiffusion in compositionally modulated films have been studied by Monte-Carlo simulations on an Ising lattice in two and three dimensions, using nearest-neighbor interactions. For a negative heat of mixing and below the order-disorder transition temperature, if a short-wavelength modulation is along a direction that is not consistent with long-range order, then ...
متن کاملDirect observation of spinodal decomposition phenomena in InAlN alloys during in-situ STEM heating
The spinodal decomposition and thermal stability of thin In0.72Al0.28N layers and In0.72Al0.28N/AlN superlattices with AlN(0001) templates on Al2O3(0001) substrates was investigated by in-situ heating up to 900 °C. The thermally activated structural and chemical evolution was investigated in both plan-view and cross-sectional geometries by scanning transmission electron microscopy in combinatio...
متن کاملDynamics of ordering in alloys with modulated phases.
This paper presents a theoretical model for studying the dynamics of ordering in alloys which exhibit modulated phases. The model is different from the standard time-dependent Ginzburg-Landau description of the evolution of a non-conserved order parameter and resembles the Swift-Hohenberg model. The early-stage growth kinetics is analyzed and compared to the Cahn-Hilliard theory of continuous o...
متن کاملModulated Structures, Nanocrystals and Quasicrystals in Mg-Zn-Y Alloys
The formation of the icosahedral phase, BCC (Body centred cubic) phase and nanocrystals are seen in the as-cast alloy with nominal composition of Mg4Zn94Y2. FCC (face centred cubic) phase and modulated structures are formed in the alloys with higher Y content (10% and 25% Y respectively). These phases are analysed keeping in view their relation to the quasicrystals of the Mg-Zn-Y system.
متن کاملDevelopment of an electrodeposited nanomold from compositionally modulated alloys
Electrodeposited multilayers of NiCu/Cu and NiFeCu/Cu were examined for nanoimprinting applications. Layer sizes on the order of 100 nm were deposited and the copper layer etched. Current efficiency and layer composition of electrolytes having different pH values were examined utilizing a rotating disk electrode. Due to large grain growth in the NiCu/Cu system, the bilayers resulted in a macros...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Periodicals of Engineering and Natural Sciences (PEN)
سال: 2013
ISSN: 2303-4521
DOI: 10.21533/pen.v1i1.16