H2020Индивидуална стипендия2018–2019

MINIMAL · Characterization and Modelling of dislocation-INterface Interactions in MetAllic Laminates at multiple scales

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-05-01 → 2019-04-30
Финансиране от ЕС: 85 061 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Металните наноламинати, като слоевете от мед и ниобий, се анализират, за да се разбере как се деформират и чупят при микроскопично ниво. Това помага за фундаменталното разбиране на механичното поведение на материалите с много тънки слоеве.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Characterization and Modelling of dislocation-INterface Interactions in MetAllic Laminates at multiple scales

Nanolaminates and superlattices offer unique mechanical and physical properties due to the nanometer scale dimensions of the layers and the high density of interfaces. However, their deformation mechanisms are still the subject of scientific debate. MINIMAL has significantly contributed towards the fundamental understanding of their mechanical behavior by setting-up and performing novel in-situ micro- and nano-mechanical tests in Cu/Nb MNLs and InP twinning superlattices, both inside the SEM and TEM to observe the deformation mechanisms. The main scientific outcomes have been: • The determination of the fracture mechanisms of Cu/Nb nanolaminates as a function of crack propagation direction. • The discovery of dynamic strain ageing effects in Cu/Nb nanolaminates at 200ºC. • The determination of the strength and fracture mechanisms of InP twinning superlattice nanowires.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The global market will increase from $11 billion in 2012 to $22.5 billion in 2018 for micro electro mechanical systems (MEMS), and from $1.9 billion in 2012 to $6.6 billion in 2018 for BioMEMS. Recently, metallic nanolaminates have attracted application as mechanical parts in MEMS and BioMEMS manufacturing. This is due to their superior properties, i.e. large flow strength, high indentation hardness, excellent ductility, good radiation damage resistance, qualified electrical/magnetic response, and promising fatigue/failure resistance. In order to address the performance of metallic nanolaminates and to reduce materials’ failure and cost under different service conditions, better analysis/predictive tools are required for dislocation-interface interactions. The improved analysis/predictive tools will allow designing more advanced nanolaminate materials. However, to develop such analysis/predictive tools, it entails (a) in-depth understanding of the physical mechanisms behind dislocation-interface interactions, (b) accurate in-situ mechanical testing data at different length scales from micro- to nanometers, and (c) efficient numerical modelling to predict dislocation-interface interactions. Through this Marie Skłodowska-Curie action, we will contribute significantly towards improving these analysis/predictive tools from two aspects, including (i) providing the scientific knowledge behind dislocation-interface interactions, and (ii) establishing improved numerical models to predict dislocation-interface failure during service. Meanwhile, the new advanced nanolaminate materials with enhanced properties will also be proposed based on the generated knowledge. In addition, the researcher and the host organization will benefit from the two-way transfer of knowledge between them.

Оригинален текст от CORDIS (на английски).

Участници

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