Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Zarkevich, Nikolai A."'
Publikováno v:
Crystals 13(6), 943 (2023)
The secondary phase, such as Ni$_3$Al-based $L1_2$ $\gamma^\prime$, is crucially important for precipitation strengthening of superalloys. Composition-structure-property relations provide useful insights for guided alloy design. Here we use density f
Externí odkaz:
http://arxiv.org/abs/2304.06869
NiCoCr middle-entropy alloy is known for its exceptional strength at both low and elevated operating temperatures. Mechanical properties of NiCoCr-based alloys are affected by certain features of the energy landscape, such as the energy difference be
Externí odkaz:
http://arxiv.org/abs/2304.06852
Autor:
Borovikov, Valery V., Mendelev, Mikhail I., Zarkevich, Nikolai A., Smith, Timothy M., Lawson, John W.
Publikováno v:
In International Journal of Plasticity July 2024 178
Spintronics is the fast growing field that will play a key role in optimizing power consumption, memory, and processing capabilities of nanoelectronic devices. Heusler alloys are potential candidates for application in spintronics due to their room t
Externí odkaz:
http://arxiv.org/abs/2111.05179
Publikováno v:
Acta Materialia 225, 117477 (2022)
For a material that is a half-metal, there should exist a range of compositions for half-metallicity. This compositional range can be expressed in terms of electron count and computed. We investigate electronic and magnetic properties of doped full-
Externí odkaz:
http://arxiv.org/abs/2004.06233
Materials under complex loading develop large strains and often transition via an elastic instability, as observed in both simple and complex systems. Here, we present Si I under large strain in terms of Lagrangian strain by an $5^{th}$-order elastic
Externí odkaz:
http://arxiv.org/abs/2002.06020
Publikováno v:
Journal of Magnetism and Magnetic Materials 530, 167913 (2021)
The Stoner-Wohlfarth is the most used model of magnetic hysteresis, but its computation is time-consuming. We use machine learning to approximate piecewise this model by easy-to-compute analytic functions. Our parametrization is suitable for fast qua
Externí odkaz:
http://arxiv.org/abs/1912.11553
Publikováno v:
Phys. Rev. Lett. 121, 165701 (2018)
Density functional theory (DFT) was employed to study the stress-strain behavior, elastic instabilities, and metallization during a solid-solid phase transformation (PT) between semiconducting Si I (cubic A4) and metallic Si II (tetragonal A5 structu
Externí odkaz:
http://arxiv.org/abs/1806.00055
Publikováno v:
Phys. Rev. B 97, 014202 (2018)
Cubic B2 FeRh exhibits a metamagnetic transition [(111) antiferromagnet (AFM) to ferromagnet (FM)] around 353 K and remains structurally stable at higher temperatures. However, the calculated zero-Kelvin phonons of AFM FeRh exhibit imaginary modes at
Externí odkaz:
http://arxiv.org/abs/1710.04199
Publikováno v:
In Acta Materialia 15 February 2022 225