Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (1/1 displayed)

  • 2018Role of the Sink Density in Non-Equilibrium Chemical Redistribution in Binary Alloys25citations

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Chart of shared publication
Martinez, E.
1 / 12 shared
Caro, A.
1 / 4 shared
Soisson, F.
1 / 6 shared
Nastar, M.
1 / 7 shared
Senninger, Oriane
1 / 7 shared
Chart of publication period
2018

Co-Authors (by relevance)

  • Martinez, E.
  • Caro, A.
  • Soisson, F.
  • Nastar, M.
  • Senninger, Oriane
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article

Role of the Sink Density in Non-Equilibrium Chemical Redistribution in Binary Alloys

  • Martinez, E.
  • B., P. Uberuaga
  • Caro, A.
  • Soisson, F.
  • Nastar, M.
  • Senninger, Oriane
Abstract

Non-equilibrium chemical redistribution in open systems submitted to external forces, such as particle irradiation, leads to changes in the structural properties of the material, potentially driving the system to failure. Such redistribution is controlled by the complex interplay between the production of point defects, the atomic transport and the sink character of the microstructure. In this studywe apply a recently developed kinetic Monte Carlo (KMC) algorithm with an underlying atomistic model for the Fe-Cr alloy to study the effect of perfect defect sinks on Cr concentration profiles, with a particular focus on the role of interface density. We observe that the amount of segregation decreases linearly with decreasing interface spacing. Within the framework of the thermodynamicsof irreversible processes, an analytical model is derived and assessed against the KMC simulations to elucidate the structure-property relationship of this system. Interestingly, in the kinetic regime where elimination of point defects at sinks is dominant, the solute segregation does not directly depend on the dose rate but only on the density of sinks. This model provides with a simple and quantitative tool for the design of microstructures that mitigate chemical redistribution and improve radiation tolerance.

Topics
  • density
  • impedance spectroscopy
  • microstructure
  • simulation
  • point defect