Journal of Inorganic Materials ›› 2022, Vol. 37 ›› Issue (12): 1321-1328.DOI: 10.15541/jim20220080

• RESEARCH ARTICLE • Previous Articles     Next Articles

Curie Temperature Prediction of BiFeO3-PbTiO3-BaTiO3 Solid Solution Based on Machine Learning

JIAO Zhixiang1(), JIA Fanhao1,2(), WANG Yongchen1, CHEN Jianguo1, REN Wei2, CHENG Jinrong1()   

  1. 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
    2. Department of Physics, International Center for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
  • Received:2022-02-17 Revised:2022-03-29 Published:2022-12-20 Online:2022-08-04
  • Contact: CHENG Jinrong, professor. E-mail: jrcheng@shu.edu.cn;
    JIA Fanhao, PhD. E-mail: fanhaojia@shu.edu.cn
  • About author:JIAO Zhixiang (1996-), male, Master candidate. E-mail: jzxxxzj@163.com
  • Supported by:
    Open Fund project of Key Laboratory of Underwater Acoustic Countermeasures Technology(JCKY2020207CH02);National Natural Science Foundation of China(51872180);National Natural Science Foundation of China(51672169)

Abstract:

Perovskite (ABO3) piezoceramics have been developed for several decades, and there are a lot of data available. It is of great significance to find relationships between structure and properties of materials from these data. In this work, experimental data of Curie temperature (Tc) of BiFeO3-PbTiO3-BaTiO3 solid solution of perovskite piezoelectric ceramics was collected to build the model to predict the Tc. From the perspective of thermodynamics, the quadratic polynomial relationship between Tc and reduced mass was introduced but the deviation was relatively large. More descriptors (including element information, physical quantities, space groups number) and SISSO (Sure Independence Screening and Sparsifying Operator) were used for machine learning to find the correlation between Tc and components. Comparing the root mean square error (RMSE) of different descriptors and dimensions, it's found that more descriptors, more fundamental the descriptors are, and larger dimension will result in smaller RMSE to be used. Meanwhile, RMSE of the same number of descriptors in the same dimension are compared. The optimal four-dimensional model is build using six descriptors: reduced mass, the ratio of A- and B-site ion radii, the ratio of A- and B-site unfilled electrons and element contents of Ba, Pb and Bi. RMSE and maximum absolute error (MaxAE) of our model are 0.59 ℃ and 1.38 ℃, respectively. The average relative error (MRE) of external test is 1.00%. Our results indicate that SISSO machine learning based on limited samples is suitable for the predication of Tc of perovskite piezoelectric ceramics.

Key words: perovskite piezoelectric ceramics, machine learning, Curie temperature, SISSO

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