首页|A generalized presentation of multi-caloric effects based on exterior derivative theory and its applications
A generalized presentation of multi-caloric effects based on exterior derivative theory and its applications
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The emerging concept of multi-caloric effects,introduced in 2010,entails the application of multiple interplay fields to a thermodynamic system.While multi-caloric effects are the main focus of experimental endeavors,theoretical considerations fall short of providing a thorough understanding.This paper introduces a comprehensive presentation on multi-caloric effects,employing the method and theory of exterior derivative formations.It addresses every aspect of thermodynamic systems,showcasing its applicability to multi-caloric materials(both single-phase and multi-phase materials),and its adaptability to different scenarios(either in single or multiple force fields).The formulation of Maxwell relationships,characterized by their generality and universality,enables a clear prediction in entropy and temperature,facilitating a distinct identification between independent and interdependent contributions from multi-caloric effects.These insights hold significant importance in designing and developing specialized thermodynamic materials,optimizing functional performances and exploring innovative mechanisms.
multicaloric effectsMaxwell relationsisothermal entropyadiabatic temperature
Jun Yin
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School of Materials Science and Engineering,Nankai University,Tianjin 300350,China
School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350108,China
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