opXRD: Open Experimental Powder X-ray Diffraction Database
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917949781049344 |
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| author | Hollarek, Daniel Schopmans, Henrik Östreicher, Jona Teufel, Jonas Cao, Bin Alwen, Adie Schweidler, Simon Singh, Mriganka Kodalle, Tim Hu, Hanlin Heymans, Gregoire Abdelsamie, Maged Hardiagon, Arthur Wieczorek, Alexander Zhuk, Siarhei Schwaiger, Ruth Siol, Sebastian Coudert, François-Xavier Wolf, Moritz Sutter-Fella, Carolin M. Breitung, Ben Hodge, Andrea M. Zhang, Tong-yi Friederich, Pascal |
| author_facet | Hollarek, Daniel Schopmans, Henrik Östreicher, Jona Teufel, Jonas Cao, Bin Alwen, Adie Schweidler, Simon Singh, Mriganka Kodalle, Tim Hu, Hanlin Heymans, Gregoire Abdelsamie, Maged Hardiagon, Arthur Wieczorek, Alexander Zhuk, Siarhei Schwaiger, Ruth Siol, Sebastian Coudert, François-Xavier Wolf, Moritz Sutter-Fella, Carolin M. Breitung, Ben Hodge, Andrea M. Zhang, Tong-yi Friederich, Pascal |
| contents | Powder X-ray diffraction (pXRD) experiments are a cornerstone for materials structure characterization. Despite their widespread application, analyzing pXRD diffractograms still presents a significant challenge to automation and a bottleneck in high-throughput discovery in self-driving labs. Machine learning promises to resolve this bottleneck by enabling automated powder diffraction analysis. A notable difficulty in applying machine learning to this domain is the lack of sufficiently sized experimental datasets, which has constrained researchers to train primarily on simulated data. However, models trained on simulated pXRD patterns showed limited generalization to experimental patterns, particularly for low-quality experimental patterns with high noise levels and elevated backgrounds. With the Open Experimental Powder X-Ray Diffraction Database (opXRD), we provide an openly available and easily accessible dataset of labeled and unlabeled experimental powder diffractograms. Labeled opXRD data can be used to evaluate the performance of models on experimental data and unlabeled opXRD data can help improve the performance of models on experimental data, e.g. through transfer learning methods. We collected 92552 diffractograms, 2179 of them labeled, from a wide spectrum of materials classes. We hope this ongoing effort can guide machine learning research toward fully automated analysis of pXRD data and thus enable future self-driving materials labs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_05577 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | opXRD: Open Experimental Powder X-ray Diffraction Database Hollarek, Daniel Schopmans, Henrik Östreicher, Jona Teufel, Jonas Cao, Bin Alwen, Adie Schweidler, Simon Singh, Mriganka Kodalle, Tim Hu, Hanlin Heymans, Gregoire Abdelsamie, Maged Hardiagon, Arthur Wieczorek, Alexander Zhuk, Siarhei Schwaiger, Ruth Siol, Sebastian Coudert, François-Xavier Wolf, Moritz Sutter-Fella, Carolin M. Breitung, Ben Hodge, Andrea M. Zhang, Tong-yi Friederich, Pascal Materials Science Machine Learning Powder X-ray diffraction (pXRD) experiments are a cornerstone for materials structure characterization. Despite their widespread application, analyzing pXRD diffractograms still presents a significant challenge to automation and a bottleneck in high-throughput discovery in self-driving labs. Machine learning promises to resolve this bottleneck by enabling automated powder diffraction analysis. A notable difficulty in applying machine learning to this domain is the lack of sufficiently sized experimental datasets, which has constrained researchers to train primarily on simulated data. However, models trained on simulated pXRD patterns showed limited generalization to experimental patterns, particularly for low-quality experimental patterns with high noise levels and elevated backgrounds. With the Open Experimental Powder X-Ray Diffraction Database (opXRD), we provide an openly available and easily accessible dataset of labeled and unlabeled experimental powder diffractograms. Labeled opXRD data can be used to evaluate the performance of models on experimental data and unlabeled opXRD data can help improve the performance of models on experimental data, e.g. through transfer learning methods. We collected 92552 diffractograms, 2179 of them labeled, from a wide spectrum of materials classes. We hope this ongoing effort can guide machine learning research toward fully automated analysis of pXRD data and thus enable future self-driving materials labs. |
| title | opXRD: Open Experimental Powder X-ray Diffraction Database |
| topic | Materials Science Machine Learning |
| url | https://arxiv.org/abs/2503.05577 |