Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Dariusz Chrobak"'
Publikováno v:
Materials, Vol 15, Iss 14, p 4960 (2022)
Classical modeling of structural phenomena occurring in InP crystal, for example plastic deformation caused by contact force, requires an interatomic interaction potential that correctly describes not only the elastic properties of indium phosphide b
Externí odkaz:
https://doaj.org/article/5307f4c18416467d8b5c5fc7545d3d63
Publikováno v:
Materials, Vol 15, Iss 15, p 5098 (2022)
Nanoindentations and the Raman spectroscopy measurements were carried out on the (001) surface of undoped and S-doped InP crystal. The samples were indented with the maximum load ranging from 15 mN to 100 mN. The phase transition B3→B1 was not conf
Externí odkaz:
https://doaj.org/article/40b353d08cfa49d092ad7ebb5956342e
Autor:
Karsten Glowka, Maciej Zubko, Paweł Świec, Krystian Prusik, Magdalena Szklarska, Dariusz Chrobak, János L. Lábár, Danuta Stróż
Publikováno v:
Materials, Vol 15, Iss 1, p 393 (2022)
The presented work was focused on investigating the influence of the (hafnium and zirconium)/molybdenum ratio on the microstructure and properties of Ti20Ta20Nb20(ZrHf)20−xMox (where: x = 0, 5, 10, 15, 20 at.%) high entropy alloys in an as-cast sta
Externí odkaz:
https://doaj.org/article/202172d62b0240b3b5c117f3280177ac
Publikováno v:
Materials, Vol 15, Iss 3, p 842 (2022)
Investigated the structural, electronic, and magnetic properties of copper pyrophosphate dihydrate (CuPPD) by the first-principle calculations based on the density functional theory (DFT). Simulations were performed with the generalized gradient appr
Externí odkaz:
https://doaj.org/article/c8a16055275c41179faae873c37b8220
Publikováno v:
AIP Advances, Vol 9, Iss 12, Pp 125323-125323-5 (2019)
This article is concerned with incipient plasticity in an InP crystal studied by nanoindentation experiments and ab initio simulations. We consider dislocation-nucleation phenomena and pressure-induced phase transformation to be the alternative mecha
Externí odkaz:
https://doaj.org/article/0b5364783ce0422aa311a32268f90c20
Publikováno v:
Materials, Vol 14, Iss 15, p 4157 (2021)
With classical molecular dynamics simulations, we demonstrated that doping of the InP crystal with Zn and S atoms reduces the pressure of the B3→B1 phase transformation as well as inhibits the development of a dislocation structure. On this basis,
Externí odkaz:
https://doaj.org/article/1bcb59d4a902485e9dd99d1a4c5b911c
Publikováno v:
Materials, Vol 14, Iss 10, p 2526 (2021)
This paper refers to the structural and magnetic properties of [(Fe80Nb6B14)0.88Dy0.12]1−xZrx (x = 0; 0.01; 0.02; 0.05; 0.1; 0.2; 0.3; 0.5) alloys obtained by the vacuum mold suction casting method. The analysis of the phase contribution indicated
Externí odkaz:
https://doaj.org/article/a956d26f54804936be973a4e315dc002
Autor:
Anna Majtyka-Piłat, Dariusz Chrobak, Roman Nowak, Marcin Wojtyniak, Mateusz Dulski, Joachim Kusz, Józef Deniszczyk
Publikováno v:
Advances in Materials Science and Engineering, Vol 2019 (2019)
The present work addresses the atomic structure and electronic properties of a recently discovered mineral qatranaite (CaZn2(OH)6·2H2O). The present study was performed theoretically by means of density functional theory- (DFT-) based calculations w
Externí odkaz:
https://doaj.org/article/329934a7a0f44377a7621526fe8f5ac6
Publikováno v:
Materials, Vol 14, Iss 6, p 1443 (2021)
The paper refers to Monte Carlo magnetic simulations for fractal-like nano and mesoscopic grains. The analyzed objects differed in the size, surface development, magnetic anisotropy and the spin values attributed to the system nodes inside the fracta
Externí odkaz:
https://doaj.org/article/120199dbb6394b7d95822c9cc5ce059a
Publikováno v:
Materials, Vol 13, Iss 17, p 3696 (2020)
This paper refers to Monte Carlo magnetic simulations for large-scale systems. We propose scaling rules to facilitate analysis of mesoscopic objects using a relatively small amount of system nodes. In our model, each node represents a volume defined
Externí odkaz:
https://doaj.org/article/f0158c951fd24a438e8487b4eff7c879