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 (5/5 displayed)

  • 2024Multi-phase-field lattice Boltzmann simulations of semi-solid simple shear deformation in thin film1citations
  • 2023Phase-field lattice Boltzmann simulation of three-dimensional settling dendrite with natural convection during nonisothermal solidification of binary alloy3citations
  • 2023Development of a data assimilation system for the investigation of the dendrite solidification process by integrating in situ X-ray imaging and phase-field simulation3citations
  • 2023Reconstruction of dendritic growth by fast tomography and phase field filtering3citations
  • 2023Preliminary system for data assimilation to infer material parameters from directional solidification experiments: twin experimental study using phase-field method1citations

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Chart of shared publication
Yamanaka, N.
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Aoki, T.
1 / 6 shared
Yamamura, A.
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Ohno, M.
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Yasuda, H.
3 / 11 shared
Narumi, T.
1 / 5 shared
Nishiguchi, A.
1 / 1 shared
Nonomura, M.
1 / 1 shared
Nakano, K.
1 / 2 shared
Xue, H.
1 / 2 shared
Imai, Y.
1 / 1 shared
Chart of publication period
2024
2023

Co-Authors (by relevance)

  • Yamanaka, N.
  • Aoki, T.
  • Yamamura, A.
  • Ohno, M.
  • Yasuda, H.
  • Narumi, T.
  • Nishiguchi, A.
  • Nonomura, M.
  • Nakano, K.
  • Xue, H.
  • Imai, Y.
OrganizationsLocationPeople

article

Development of a data assimilation system for the investigation of the dendrite solidification process by integrating in situ X-ray imaging and phase-field simulation

  • Yamamura, A.
  • Ohno, M.
  • Yasuda, H.
  • Takaki, T.
Abstract

<jats:title>Abstract</jats:title><jats:p>The dendrite solidification process has been observed and simulated using state-of-the-art techniques, such as time-resolved X-ray tomography (4D-CT) and high-performance phase-field (PF) simulations. 4D-CT has enabled the direct observation of the 3D dendrite growth in opaque alloys. However, the spatiotemporal resolution is not sufficient for investigating fast phenomena because a 3D solidification structure is obtained using hundreds of transmission images during the 180° rotation of a sample. High-performance PF simulations have enabled the simulation of multiple 3D dendrite growth phenomena. However, the material properties required in PF solutions of alloys are often unavailable. Therefore, integrating in situ X-ray observations with PF simulations using data assimilation is a promising approach for simultaneously solving these issues. In this study, we developed a data assimilation system with an ensemble Kalman filter, in which the solid fraction along the thickness of a sample was used as observation data to enable data assimilation using X-ray transmission images. The performance of the developed data assimilation system was evaluated via twin experiments for columnar dendrite growth during the directional solidification of a binary alloy in a thin film. The results showed that data assimilation using the solid fraction as observation data estimated the material properties and solidification morphologies with reasonable accuracy.</jats:p>

Topics
  • impedance spectroscopy
  • phase
  • experiment
  • thin film
  • simulation
  • tomography
  • directional solidification