Abstract
X-ray diffraction (XRD) is a widely used experiment in materials science to understand the composition-structure-property relationships of materials for designing and discovering new materials. A key aspect of XRD analysis is that the composition-phase diagram is composed of not only pure phases but also their mixed phases. Hard clustering approach treats the mixed phases as separate independent clusters from their constituent pure phases, hence, resulting in incorrect phase diagrams which complicate the next steps. Here, we present a novel clustering approach of XRD patterns by leveraging a fuzzy clustering technique that can significantly enhance the potential phase mapping and reduce the manual efforts involved in XRD analysis. The proposed approach first generates an initial composition-phase diagram and initial pure phase representations by applying the fuzzy c-means clustering algorithm, followed by hierarchical clustering to accomplish effortless manual merging of similar initial pure phases to generate the final composition-phase diagram. The proposed method is evaluated on the XRD samples from two high-throughput composition-spread experiments of Co-Ni-Ta and Co-Ti-Ta ternary alloy systems. Our results demonstrate significant improvement compared to hard clustering and almost completely eliminate manual efforts.
Original language | English (US) |
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Title of host publication | ICPRAM 2021 - Proceedings of the 10th International Conference on Pattern Recognition Applications and Methods |
Editors | Maria De Marsico, Gabriella Sanniti di Baja, Ana Fred |
Publisher | SciTePress |
Pages | 507-514 |
Number of pages | 8 |
ISBN (Electronic) | 9789897584862 |
State | Published - 2021 |
Event | 10th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2021 - Virtual, Online Duration: Feb 4 2021 → Feb 6 2021 |
Publication series
Name | ICPRAM 2021 - Proceedings of the 10th International Conference on Pattern Recognition Applications and Methods |
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Conference
Conference | 10th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2021 |
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City | Virtual, Online |
Period | 2/4/21 → 2/6/21 |
Funding
This work was performed under the following financial assistance award 70NANB14H012 and 70NANB19H005 from U.S. Department of Commerce, National Institute of Standards and Technology as part of the Center for Hierarchical Materials Design (CHiMaD), DND-CAT located at Sector 5 of the Advanced Photon Source (APS) at Argonne National Lab supported by DOE under Contract No. DE-AC02-06CH11357, the MRSEC program of the National Science Foundation (DMR-1720139), and the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205). Partial support is also acknowledged from DOE awards DESC0014330, DE-SC0019358.
Keywords
- Composition-phase diagram
- Fuzzy C-means clustering
- Fuzzy representation
- Hierarchical clustering
- Phase clustering
- Unsupervised learning
- X-ray diffraction
ASJC Scopus subject areas
- Computer Vision and Pattern Recognition