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RESEARCH INTERESTS AND AREAS

DR. ARAM SHIRINYAN'S RESEARCH INTERESTS

My research interests focus on the

change of the physical and chemical properties of nanomaterials

in size-dependent first order phase transformations.

We investigate size-dependent energy-related issues of

nanosized films and nanoparticles concerning their stability and performance,

isobaric temperature-composition phase diagrams

of multicomponent nanosystems,

size-induced kinetics of colloidal solutions,

nanosized phase growth kinetics and а binary diffusion couple,

isolated nanoparticles, metastable alloys specifically targeting

the influence of the characteristic size on the phase transformation,

structure and diffusion activity of various materials

during isothermal annealing.

Of special interest is highlighting the role of size effect in such phenomena as:

- melting and crystallization of

continuous metal and alloy films (including multilayers),

- phase separation/ decomposition in

solutions and metallic alloys,

- lattice parameter variation in metallic nanosystems,

- width of the thermal hysteresis in a nanopowder

during the first order phase transformation,

- microstructure and properties of metallic systems,

- property changes induced by changes of atom-atom interactions,

- diffusion and reactive diffusion in multicomponent systems.

The study is obtained mainly through original theory,

thermodynamic and kinetic theoretical approaches developed in the group,

advanced simulation methods for kinetic

«master-equation» and Fokker-Planck sampling,

computational Monte Carlo method,

Residence-Time and and Metropolis Algorithms,

molecular statics and molecular dynamics,

thermodynamic L. Onsager equation of diffusion,

Fourier's thermal conductivity equation.

DR. ARAM SHIRINYAN'S SCIENTIFIC AREAS

Physical-chemical materials science: solid state physics and chemistry,

condensed matter nanophysics and metals physics,

chemical phase theory of ‘size-dependent’ phase transitions,

reactive diffusion at metallic contacts, first order phase transformations,

applications for low-dimensional and nano-sized systems related to the

thermodynamics and kinetics of first order phase transitions,

structure and competition of nanophases.

ASSOCIATED SPECIALITIES

(in accordance with Ukrainian Education Code):

01.04.02 – theoretial physics;

01.04.07 – solid state physics;

01.04.13 – physics of metals;

01.04.14 – thermal and molecular physics;

01.04.18 – physics and chemistry of surface,

01.04.24 – physics of colloidal systems;

02.00.04 – physical chemistry (and chemical physics);

02.00.11 – colloidal chemistry (colloidal physics);

02.00.21 – chemistry of solid state.

ASSOCIATED SPECIALIZATIONS:

- computational physics;

- nanophysics and nanoelectronics;

- nanochemistry and nanophotonics.

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