Interfacial behavior of a thermoelectric film bonded to a graded substrate

作     者：Juan PENG Dengke LI Zaixing HUANG Guangjian PENG Peijian CHEN Shaohua CHEN Juan PENG;Dengke LI;Zaixing HUANG;Guangjian PENG;Peijian CHEN;Shaohua CHEN

作者机构：School of Materials Science and PhysicsState Key Laboratory for Geomechanics and Deep Underground EngineeringSchool of Mechanics and Civil EngineeringChina University of Mining and TechnologyXuzhou 221116Jiangsu ProvinceChina State Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and AstronauticsNanjing 210016China College of Mechanical EngineeringZhejiang University of TechnologyHangzhou 310014China State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Institute of Advanced Structure TechnologyBeijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and StructuresBeijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in BeijingBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2023年第44卷第11期

页      面：1853-1870页

核心收录：

学科分类：08[工学] 0701[理学-数学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Project supported by the National Natural Science Foundation of China(Nos.11972363 and12272401) the Opening Project of State Key Laboratory of Solid Lubrication(Lanzhou Institute of Chemical Physics)(No.LSL-20012001) the Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures(Nanjing University of Aeronautics and Astronautics)(No.MCMS-E-0221G01) 

主　　题：thermoelectric film graded substrate interfacial behavior singular integral equation shear stress intensity factor 

摘      要：To improve the thermoelectric converting performance in applications such as power generation,reutilization of heat energy,refrigeration,and ultrasensitive sensors in scramjet engines,a thermoelectric film/substrate system is widely designed and applied,whose interfacial behavior dominates the strength and service life of thermoelectric ***,a theoretical model of a thermoelectric film bonded to a graded substrate is *** interfacial shear stress,the normal stress in the thermoelectric film,and the stress intensity factors affected by various material and geometric parameters are comprehensively *** is found that adjusting the inhomogeneity parameter of the graded substrate,thermal conductivity,and current density of the thermoelectric film can reduce the risk of interfacial failure of the thermoelectric film/graded substrate *** a stiffer and thicker thermoelectric film is advantageous to the reliability of the thermoelectric film/graded substrate *** results should be of great guiding significance for the present and upcoming applications of thermoelectric materials in various fields.