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Research Article | Open Access

Data-driven discovery of formation ability descriptors for high-entropy rare-earth monosilicates

Hong Meng,,1Peng Wei,1Zhongyu TangHulei Yu( )Yanhui Chu( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China

Peer review under responsibility of The Chinese Ceramic Society.

1 These authors contribute equally to this article.

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Graphical Abstract

Abstract

Herein we establish formation ability descriptors of high-entropy rare-earth monosilicates (HEREMs) via the data-driven discovery based on the high-throughput solid-state reaction and machine learning (ML) methods. Specifically, adequate high-quality data are generated with 132 samples synthesized by the self-developed high-throughput solid-state reaction apparatuses, and 30 potential descriptors are considered in ML simultaneously. Two classifications are proposed to study the phase formation of HEREMs via the ML approach combined with the genetic algorithm: (Ⅰ) to distinguish pure HEREMs (X) from other phases and (Ⅱ) to categorize the detail phases of HEREMs (X2, X1, or X2+X1). Four formation ability descriptors ( rMe¯, EF¯, δEg, and δZ) with a high validation accuracy (96.2%) are proposed as the optimal combination for Classification Ⅰ, where a smaller rMe¯ is determined to have the most significant influence on the formation of HEREMs. For Classification Ⅱ, a 100% validation accuracy is achieved by using only two formation ability descriptors ( rion ¯ and δZ), where the rion ¯ is analyzed to be the dominant feature and a lower rion ¯ is beneficial to the formation of X2-HEREMs. Based on our established formation ability descriptors, 6,045 unreported multicomponent silicates are explored, and 3,478 new HEREMs with 2,700 X2-and 423 X1-HEREMs are predicted.

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Journal of Materiomics
Pages 738-747
Cite this article:
Meng H, Wei P, Tang Z, et al. Data-driven discovery of formation ability descriptors for high-entropy rare-earth monosilicates. Journal of Materiomics, 2024, 10(3): 738-747. https://doi.org/10.1016/j.jmat.2023.11.017

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Received: 27 November 2023
Revised: 28 November 2023
Accepted: 30 November 2023
Published: 20 December 2023
© 2023 The Authors.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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