Physics-embedded machine learning search for Sm-doped PMN-PT piezoelectric ceramics with high performance  

作　　者：辛睿 王亚祺 房泽 郑凤基 高雯 付大石 史国庆 刘建一 张永成 Rui Xin;Yaqi Wang;Ze Fang;Fengji Zheng;Wen Gao;Dashi Fu;Guoqing Shi;Jian-Yi Liu;Yongcheng Zhang(College of Physics,Center for Marine Observation and Communications,National Demonstration Center for Experimental Applied Physics Education,Qingdao University,Qingdao 266071,China;Centre for Theoretical and Computational Physics,College of Physics,Qingdao University,Qingdao 266071,China)

机构地区：[1]College of Physics,Center for Marine Observation and Communications,National Demonstration Center for Experimental Applied Physics Education,Qingdao University,Qingdao 266071,China [2]Centre for Theoretical and Computational Physics,College of Physics,Qingdao University,Qingdao 266071,China

出　　处：《Chinese Physics B》2024年第8期81-88,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos.52272116 and 12002400);the Natural Science Foundation of Shandong Province (Grant No.ZR2021ME096);the Youth Innovation Team Project of Shandong Provincial Education Department (Grant No.2019KJJ012)。

摘　　要：Pb(Mg_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)(PMN-PT)piezoelectric ceramics have excellent piezoelectric properties and are used in a wide range of applications.Adjusting the solid solution ratios of PMN/PT and different concentrations of elemental doping are the main methods to modulate their piezoelectric coefficients.The combination of these controllable conditions leads to an exponential increase of possible compositions in ceramics,which makes it not easy to extend the sample data by additional experimental or theoretical calculations.In this paper,a physics-embedded machine learning method is proposed to overcome the difficulties in obtaining piezoelectric coefficients and Curie temperatures of Sm-doped PMN-PT ceramics with different components.In contrast to all-data-driven model,physics-embedded machine learning is able to learn nonlinear variation rules based on small datasets through potential correlation between ferroelectric properties.Based on the model outputs,the positions of morphotropic phase boundary(MPB)with different Sm doping amounts are explored.We also find the components with the best piezoelectric property and comprehensive performance.Moreover,we set up a database according to the obtained results,through which we can quickly find the optimal components of Sm-doped PMN-PT ceramics according to our specific needs.

关 键 词：Pb(Mg_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)(PMN-PT)ceramic physics-embedded machine learning piezoelectric coefficient Curie temperature 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程] TM282[自动化与计算机技术—控制科学与工程]