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pro vyhledávání: '"Balakrishna, Ananya Renuka"'
We present a multiscale theoretical framework to investigate the interplay between diffusion and finite lattice deformation in phase transformation materials. In this framework, we use the Cauchy-Born Rule and the Principle of Virtual Power to derive
Externí odkaz:
http://arxiv.org/abs/2309.01870
During the reversible insertion of ions, lattices in intercalation materials undergo structural transformations. These lattice transformations generate misfit strains and volume changes that, in turn, contribute to the structural decay of intercalati
Externí odkaz:
http://arxiv.org/abs/2206.14948
Autor:
Balakrishna, Ananya Renuka
Intercalation materials are promising candidates for reversible energy storage and are, for example, used as lithium-battery electrodes, hydrogen-storage compounds, and electrochromic materials. An important issue preventing the more widespread use o
Externí odkaz:
http://arxiv.org/abs/2204.04525
We present a strategy for the design of ferromagnetic materials with exceptionally low magnetic hysteresis, quantified by coercivity. In this strategy, we use a micromagnetic algorithm that we have developed in previous research and which has been va
Externí odkaz:
http://arxiv.org/abs/2111.05456
A key cause of chemo-mechanical degradation in battery electrodes is that they undergo abrupt phase transformation during the charging/discharging cycle. This phase transformation is accompanied by lattice misfit strains that nucleate microcracks, in
Externí odkaz:
http://arxiv.org/abs/2106.07891
We propose a solution to the longstanding permalloy problem$-$why the particular composition of permalloy, Fe$_{21.5}$Ni$_{78.5}$, achieves a dramatic drop in hysteresis, while its material constants show no obvious signal of this behavior. We use ou
Externí odkaz:
http://arxiv.org/abs/2101.09857
Magnetic coercivity is often viewed to be lower in alloys with negligible (or zero) values of the anisotropy constant. However, this explains little about the dramatic drop in coercivity in FeNi alloys at a non-zero anisotropy value. Here, we develop
Externí odkaz:
http://arxiv.org/abs/2012.09320
Akademický článek
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Publikováno v:
In Journal of the Mechanics and Physics of Solids October 2023 179
Publikováno v:
Phys. Rev. Materials 3, 065404 (2019)
Grain boundary migration is driven by the boundary's curvature and external loads such as temperature and stress. In intercalation electrodes an additional driving force results from Li-diffusion. That is, Li-intercalation induces volume expansion of
Externí odkaz:
http://arxiv.org/abs/1806.06890