Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Upmanyu, Moneesh"'
The grain boundary (GB) microstructure influences and is influenced by the development of residual stresses during synthesis of polycrystalline thin films. Recent studies have shown that the frustration between the preferred growth direction and rota
Externí odkaz:
http://arxiv.org/abs/2212.06789
Gaseous layers (plastrons) trapped on the surfaces of immersed hydrophobic surfaces are critical for their function. Fibrillar morphologies offer a natural pathway, yet they are limited to a narrow range of liquid-surface systems and are vulnerable t
Externí odkaz:
http://arxiv.org/abs/2111.09270
Autor:
Wang, Changjian, Upmanyu, Moneesh
The design of polycrystalline alloys hinges on a predictive understanding of the interaction between the diffusing solutes and the motion of the constituent crystalline interfaces. Existing frameworks ignore the dynamic multiplicity of and transition
Externí odkaz:
http://arxiv.org/abs/2004.02394
Publikováno v:
Phys. Rev. Materials 5, 074003 (2021)
Segregation at surfaces of metal-covalent binary liquids is often non-classical and in extreme cases such as AuSi, the surface crystallizes above the melting point. In this study, we employ atomic-scale computational frameworks to study the surface c
Externí odkaz:
http://arxiv.org/abs/2002.12542
Publikováno v:
In Acta Materialia 1 January 2023 242
Publikováno v:
Phys. Rev. Materials 2, 033402 (2018)
We present a multi-phase-field model to describe quantitatively nanowire growth by the vapor-liquid-solid (VLS) process. The free-energy functional of this model depends on three non-conserved order parameters that distinguish the vapor, liquid, and
Externí odkaz:
http://arxiv.org/abs/1710.09460
High velocity impact between crystalline surfaces is important for a range of material phenomena, yet a fundamental understanding of the effect of surface structure, energetics and kinetics on the underlying thermo-mechanical response remains elusive
Externí odkaz:
http://arxiv.org/abs/1510.03775
Autor:
Bilgin, Ismail, Liu, Fangze, Vargas, Anthony, Winchester, Andrew, Man, Michael K. L., Upmanyu, Moneesh, Dani, Keshav M, Gupta, Gautam, Talapatra, Saikat, Mohite, Aditya D., Kar, Swastik
Publikováno v:
ACS Nano 9 (9), 8822 - 8832 (2015)
The ability to synthesize high-quality samples over large areas and at low cost is one of the biggest challenges during the developmental stage of any novel material. While chemical vapor deposition (CVD) methods provide a promising low-cost route fo
Externí odkaz:
http://arxiv.org/abs/1504.04888
Interplay between structure and function in atomically thin crystalline nanoribbons is sensitive to their conformations yet the ability to prescribe them is a formidable challenge. Here, we report a novel paradigm for controlled nucleation and growth
Externí odkaz:
http://arxiv.org/abs/1410.0324
Autor:
Shahabi, Alireza, Upmanyu, Moneesh
The relaxation of twist in elastic filaments often drives conformational changes. We explore this paradigm using all-atom computations and report the formation of novel supercoiled shapes in individual carbon nanotubes (CNTs). Decreasing the end dist
Externí odkaz:
http://arxiv.org/abs/1402.5696