Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Rátkai, László"'
Scattering-type scanning near-field optical microscopy is becoming a premier method for the nanoscale optical investigation of materials well beyond the diffraction limit. A number of popular numerical methods exist to predict the near-field contrast
Externí odkaz:
http://arxiv.org/abs/2309.12228
Autor:
Rátkai, László, Pusztai, Tamás
Publikováno v:
In Acta Materialia 1 December 2024 281
Autor:
Gránásy, László, Rátkai, László, Tóth, Gyula I., Gilbert, Pupa U. P. A., Zlotnikov, Igor, Pusztai, Tamás
While biological crystallization processes have been studied on the microscale extensively, models addressing the mesoscale aspects of such phenomena are rare. In this work, we investigate whether the phase-field theory developed in materials science
Externí odkaz:
http://arxiv.org/abs/2012.00666
Autor:
Gránásy, László, Tóth, Gyula I., Warren, James A., Podmaniczky, Frigyes, Tegze, György, Rátkai, László, Pusztai, Tamás
Publikováno v:
Progress in Materials Science, available online 30 May 2019, 100569
We review how phase-field models contributed to the understanding of various aspects of crystal nucleation including homogeneous and heterogeneous processes, and their role in microstructure evolution. We recall results obtained both by the conventio
Externí odkaz:
http://arxiv.org/abs/1907.05732
Publikováno v:
In Acta Materialia 1 April 2022 227
Publikováno v:
J. Chem. Phys. 142, 154501 (2015)
Extending previous work [T. Pusztai, L. R\'atkai, A. Sz\'all\'as, and L. Gr\'an\'asy, Phys. Rev. E {\bf 87}, 032402 (2013)], we have studied the formation of eutectic dendrites in a model ternary system within the framework of the phase-field theory.
Externí odkaz:
http://arxiv.org/abs/1503.08318
Autor:
Rátkai, László, Kaban, Ivan, Wágner, Tomáš, Kolář, Jakub, Valková, Silviya, Voleská, Iva, Beuneu, Brigitte, Jóvári, Pál
Publikováno v:
J. Phys.: Condens. Matter 25 454210 (2013)
The structure of Ag-doped GeS3 glasses (0, 15, 20, 25 at.% Ag) was investigated by diffraction techniques and extended x-ray absorption fine structure measurements. Structural models were obtained by fitting the experimental datasets simultaneously b
Externí odkaz:
http://arxiv.org/abs/1408.0336
The quantitative phase-field approach has been adapted to model solidification in the presence of Metal Matrix Nanocomposites (MMNCs) in a single-component liquid. Nanoparticles of fixed size and shape are represented by additional fields. The corres
Externí odkaz:
http://arxiv.org/abs/1406.2532
Publikováno v:
Phys. Rev. E 87, 032401 (2013)
Eutectic dendrites forming in a model ternary system have been studied using the phase-field theory. The eutectic and one-phase dendrites have similar forms, and the tip radius scales with the interface free energy as for one-phase dendrites. The ste
Externí odkaz:
http://arxiv.org/abs/1302.4884
Publikováno v:
Physica Status Solidi - Rapid Research Letters; Apr2024, Vol. 18 Issue 4, p1-6, 6p