Inverse-designed spinodoid metamaterials

S Kumar, S Tan, L Zheng, DM Kochmann - npj Computational Materials, 2020 - nature.com
After a decade of periodic truss-, plate-, and shell-based architectures having dominated the
design of metamaterials, we introduce the non-periodic class of spinodoid topologies …

[HTML][HTML] Data-driven topology optimization of spinodoid metamaterials with seamlessly tunable anisotropy

L Zheng, S Kumar, DM Kochmann - Computer Methods in Applied …, 2021 - Elsevier
We present a two-scale topology optimization framework for the design of macroscopic
bodies with an optimized elastic response, which is achieved by means of a spatially-variant …

Coarse-grained modeling of crystals by the amplitude expansion of the phase-field crystal model: an overview

M Salvalaglio, KR Elder - Modelling and Simulation in Materials …, 2022 - iopscience.iop.org
Comprehensive investigations of crystalline systems often require methods bridging
atomistic and continuum scales. In this context, coarse-grained mesoscale approaches are …

Continuum modelling of semiconductor heteroepitaxy: an applied perspective

R Bergamaschini, M Salvalaglio, R Backofen… - … in Physics: X, 2016 - Taylor & Francis
Semiconductor heteroepitaxy involves a wealth of qualitatively different, competing
phenomena. Examples include three-dimensional island formation, injection of dislocations …

Complex dewetting scenarios of ultrathin silicon films for large-scale nanoarchitectures

M Naffouti, R Backofen, M Salvalaglio, T Bottein… - Science …, 2017 - science.org
Dewetting is a ubiquitous phenomenon in nature; many different thin films of organic and
inorganic substances (such as liquids, polymers, metals, and semiconductors) share this …

PRISMS-PF: A general framework for phase-field modeling with a matrix-free finite element method

S DeWitt, S Rudraraju, D Montiel… - npj Computational …, 2020 - nature.com
A new phase-field modeling framework with an emphasis on performance, flexibility, and
ease of use is presented. Foremost among the strategies employed to fulfill these objectives …

Hyperuniform monocrystalline structures by spinodal solid-state dewetting

M Salvalaglio, M Bouabdellaoui, M Bollani, A Benali… - Physical review …, 2020 - APS
Materials featuring anomalous suppression of density fluctuations over large length scales
are emerging systems known as disordered hyperuniform. The underlying hidden order …

Templated dewetting of single-crystal sub-millimeter-long nanowires and on-chip silicon circuits

M Bollani, M Salvalaglio, A Benali… - Nature …, 2019 - nature.com
Abstract Large-scale, defect-free, micro-and nano-circuits with controlled inter-connections
represent the nexus between electronic and photonic components. However, their …

Microstructural patterns with tunable mechanical anisotropy obtained by simulating anisotropic spinodal decomposition

A Vidyasagar, S Krödel… - Proceedings of the …, 2018 - royalsocietypublishing.org
The generation of mechanical metamaterials with tailored effective properties through
carefully engineered microstructures requires avenues to predict optimal microstructural …

Disconnection-Mediated migration of interfaces in microstructures: II. diffuse interface simulations

M Salvalaglio, DJ Srolovitz, J Han - Acta Materialia, 2022 - Elsevier
The motion of interfaces is an essential feature of microstructure evolution in crystalline
materials. While atomic-scale descriptions provide mechanistic clarity, continuum …