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arXiv 2511.04468cond-mat.mtrl-sciphysics.comp-ph
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基于卷积神经网络的机器学习驱动先进无机材料弹性预测

Machine learning-driven elasticity prediction in advanced inorganic materials via convolutional neural networks

State Key Laboratory of Porous Metal Materials, School of Materials Science and Engineering, Xi’an Jiaotong University(西安交通大学材料科学与工程学院多孔金属材料国家重点实验室);National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics(应用物理与计算数学研究所国家计算物理学重点实验室);State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University(西安交通大学材料科学与工程学院材料力学行为国家重点实验室)

Yujie Liu, Zhenyu Wang, Hang Lei, Guoyu Zhang, Jiawei Xian, Zhibin Gao, Jun Sun, Haifeng Song, Xiangdong Ding

AI总结:

本研究利用CGCNN模型对80664个无机晶体的剪切模量和体积模量进行高精度预测,丰富了材料弹性数据资源并为材料设计提供支持。

摘要:

无机晶体材料因优异的物理和化学性质而具有广泛的应用潜力,其中弹性质(剪切模量、体积模量)对于预测材料的导电性、导热性和力学性能至关重要。传统实验测量成本高、效率低,而理论模拟和基于图神经网络的机器学习方法——尤其是晶体图卷积神经网络(CGCNNs)——已成为有效的替代方案,在预测材料弹性质方面取得了显著成果。本研究利用Matbench v0.1数据集中10987种材料的剪切模量和体积模量数据训练了两个CGCNN模型,这些模型表现出高精度(平均绝对误差<13,决定系数R-squared接近1)和良好的泛化能力。研究对材料进行了筛选,保留带隙在0.1–3.0 eV之间的材料,并排除含放射性元素的化合物。最终预测数据集包含两部分:来自Materials Project数据库的54359个晶体结构和Merchant等人(2023 Nature 624 80)发现的26305个晶体结构。最终,本研究完成了对80664个无机晶体的剪切模量和体积模量预测。该工作丰富了现有的材料弹性数据资源,并为材料设计提供了有力支持,所有数据可在https://doi.org/10.57760/sciencedb.j00213.00104公开获取。

英文摘要:

Inorganic crystal materials have broad application potential due to excellent physical and chemical properties, with elastic properties (shear modulus, bulk modulus) crucial for predicting materials' electrical conductivity, thermal conductivity and mechanical properties. Traditional experimental measurement suffers from high cost and low efficiency, while theoretical simulation and graph neural network-based machine learning methods--especially crystal graph convolutional neural networks (CGCNNs)--have become effective alternatives, achieving remarkable results in predicting material elastic properties. This study trained two CGCNN models using shear modulus and bulk modulus data of 10987 materials from the Matbench v0.1 dataset, which exhibit high accuracy (mean absolute error <13, coefficient of determination R-squared close to 1) and good generalization ability. Materials were screened to retain those with band gaps between 0.1-3.0 eV and exclude radioactive element-containing compounds. The final predicted dataset comprises two parts: 54359 crystal structures from the Materials Project database and 26305 crystal structures discovered by Merchant et al. (2023 Nature 624 80). Ultimately, this study completed the prediction of shear modulus and bulk modulus for 80664 inorganic crystals. This work enriches existing material elastic data resources and provides robust support for material design, with all data openly available at https://doi.org/10.57760/sciencedb.j00213.00104.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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