Project description
Plasticity in complex crystals
A new generation of structural materials that are strong and resilient in diverse temperature conditions are needed to ensure the future remains bright for sustainable energy conversion and transport technology. Plasticity in complex crystals could be the answer but there is limited knowledge on the underlying mechanisms. The EU-funded FunBlocks project will conduct innovative studies on plasticity mechanisms in the most representative building blocks of complex crystals. It proposes a new approach, isolating and then examining the sub-units that form a large number of complex crystals. The main objective is to clarify the basic relationships between crystal structure and plasticity in complex crystals in order to predict and use those with exceptional mechanical properties in future technologies that cannot be realised with current materials.
Objective
New structural materials with higher strength and temperature capabilities are the key enablers of sustain-able energy conversion and transport technology of the future.
The question is: How do we find those central high-performers combining high strength and the essential deformability giving safety in application?
It is the aim of FUNBLOCKS to provide the first systematic studies of plasticity mechanisms in the most fundamental building blocks of complex crystals. These will allow us to deduce the missing basic mechanisms and signatures of plasticity. FUNBLOCKS will take a new approach by studying the much simpler sub-units that form the multitude of more complex crystals with large unit cells amongst the intermetallics. This has three major implications: i) the reduction to fundamental units allows suffi-cient time to unravel the major deformation mechanisms to the atomic level, ii) the recurrent nature of the few fundamental building blocks will allow a transfer of this knowledge to a large number of complex phases and iii) together, this will enable data mining from the vast and largely unexplored phase space of intermetallics.
The key aspect of FUNBLOCKS is therefore to close the existing gap in knowledge and allow us to find promising new phases by elucidating the fundamental relationships between crystal structure and plasticity beyond what we know in simple metals. To identify and quantify the intrinsic mechanical properties of each sub-unit, state-of-the-art micromechanical testing techniques will be used. Transfer of data and verification of the central hypothesis, that fundamental units govern plasticity in complex crystals, will be achieved via additional alloyed crystals forming ternary variants of the binary structures.
Ultimately, FUNBLOCKS will answer fundamental questions in plasticity, most prominently the interplay of deformation and structure in complex crystals, and thereby support the development of new high performance materials.
Fields of science
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Funding Scheme
ERC-STG - Starting GrantHost institution
52062 Aachen
Germany