Self-organization of ordered nano- and microstructures on the semiconductor surface under the action of laser radiation

Emel’yanov, V. I.

doi:10.1134/s1054660x08060029

Cited by 32 publications

(16 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where N (i ) d c = k B T ρc 2 i /θ (i ) d is the critical defect concentration, which being exceeded results in the selforganization of the defects [9].…”

Section: -3mentioning

confidence: 99%

Spatial-temporal redistribution of point defects in three-layer stressed nanoheterosystems within the limits of self-assembled deformation-diffusion model

Peleshchak¹,

Kulyk²,

Doroshenko³

2015

Condens. Matter Phys.

View full text Add to dashboard Cite

The model of spatial-temporal distribution of point defects in a three-layer stressed nanoheterosystem GaAs/In x Ga 1−x As/GaAs considering the self-assembled deformation-diffusion interaction is constructed. Within the framework of this model, the profile of spatial-temporal distribution of vacancies (interstitial atoms) in the stressed nanoheterosystem GaAs/In x Ga 1−x As/GaAs is calculated. It is shown that in the case of a stationary state (t > 5τ

show abstract

“…where N (i ) d c = k B T ρc 2 i /θ (i ) d is the critical defect concentration, which being exceeded results in the selforganization of the defects [9].…”

Section: -3mentioning

confidence: 99%

Spatial-temporal redistribution of point defects in three-layer stressed nanoheterosystems within the limits of self-assembled deformation-diffusion model

Peleshchak¹,

Kulyk²,

Doroshenko³

2015

Condens. Matter Phys.

View full text Add to dashboard Cite

show abstract

“…where λ is the elastic moduli operator [3]. Introducing the variable τ = r ′ − r and expanding ε(r + τ) in a Taylor series by τ, we obtain:…”

Section: The Modelmentioning

confidence: 99%

“…In work [1] it has been demonstrated that the equilibrium vacancy concentration can be high even at low temperatures, if the bulk deformation exceeds some critical value. The processes of self-organization of vacancies (that interact with one another and with the crystalline matrix through the deformation field) into separate clusters and periodic structures is possible if their concentration is high enough [3]. The formation of a periodic pore lattice in metal and in dielectric materials irradiated with high-energy neutron and electron beams has been observed in works [4,5].…”

Section: Introductionmentioning

confidence: 99%

Non-linear model of impurity diffusion in nanoporous materials upon ultrasonic treatment

Peleshchak¹,

Kuzyk²,

Dan’kiv³

2014

Condens. Matter Phys.

View full text Add to dashboard Cite

Non-linear theory of diffusion of impurities in porous materials upon ultrasonic treatment is described. It is shown that at a defined value of deformation amplitude, an average concentration of vacancies and temperature as a result of the effect of ultrasound possibly leads to the formation of nanoclusters of vacancies and to their periodic educations in porous materials. It is shown that at a temperature smaller than some critical value, a significant growth of a diffusion coefficient is observed in porous materials.

show abstract

“…In the field of surface engineering, nano-materials have been found in the research reports on spraying and laser surface alloy, etc. [2,3]. In the field of surface engineering, nano-Y 2 O 3 can further refine the microstructures of the laser-cladded coatings, and also reduce the tendency of cracking [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, *Corresponding author: tel./fax: +86 531 88395991; e-mail address: czchen@sdu.edu.cn rare earth oxide reinforced metal matrix composites have potential application in the aerospace industry. Through the experiment, it was found that Al 3 Ti was suitable to be used as the laser cladding powder. During the cladding process, a portion of Al 3 Ti was able to react with Ti, leading to the formation of Ti 3 Al, which also showed high micro-hardness and good wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Effect of nano-Y2O3 on microstructure and diffusive behavior of Ti3Al/Al3Ti matrix composite coatings

Li¹,

Yu²,

Chen³

et al. 2012

View full text Add to dashboard Cite

Laser cladding of the Al3Ti+TiC+(Ni-coated WC) pre-placed powders on titanium alloy can form the Ti3Al/Al3Ti matrix composite coating, which improves the surface performance of the substrate. With addition of nano-Y2O3, this composite coating exhibited a finer microstructure. In this study, the Al3Ti+TiC+(Ni-coated WC)+nano-Y2O3 laser-cladded coatings have been researched by means of X-ray diffraction and scanning electron microscope. The function of nano-Y2O3 acted as the heterogeneous nuclei, and the growth of the grains was hindered by Y2O3 and Y. Y2O3 can also decrease the temperature of the molten pool. Thus, the probability that grains traverse potential barrier decreased, leads to more stability of the grains.K e y w o r d s : coatings, rare earth compounds, laser cladding, intermetallics, diffusion

show abstract

Self-organization of ordered nano- and microstructures on the semiconductor surface under the action of laser radiation

Cited by 32 publications

References 49 publications

Spatial-temporal redistribution of point defects in three-layer stressed nanoheterosystems within the limits of self-assembled deformation-diffusion model

Spatial-temporal redistribution of point defects in three-layer stressed nanoheterosystems within the limits of self-assembled deformation-diffusion model

Non-linear model of impurity diffusion in nanoporous materials upon ultrasonic treatment

Effect of nano-Y2O3 on microstructure and diffusive behavior of Ti3Al/Al3Ti matrix composite coatings

Contact Info

Product

Resources

About