基于钛酸钡的电热材料——最新进展与展望

BaTiO-Based Electrocaloric Materials-Recent Progresses and Perspective.

作者信息

Tang Yi, Niu Xiang, Jiang Yuleng, Cao Junxi, Lai Junying, He Houzhu, Chen Jianpeng, Jian Xiaodong, Lu Sheng-Guo

机构信息

School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.

School of Integrated Circuits, Guangdong University of Technology, Guangzhou 510006, China.

出版信息

Materials (Basel). 2025 Sep 6;18(17):4190. doi: 10.3390/ma18174190.

DOI:10.3390/ma18174190

PMID:40942616

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12430785/

Abstract

BaTiO (BT)-based lead-free ceramics are regarded as highly promising candidates for solid-state electrocaloric (EC) cooling devices due to their large spontaneous polarizations, shiftable Curie temperatures, and environmental friendliness. This review summarizes recent progresses in the design and optimization of BT-based EC ceramics. Key aspects include thermodynamic principles of the EC effect (ECE); structural phase transitions; and strategies such as constructing relaxor ferroelectrics, multi-phase coexistence, etc. Finally, future research directions are proposed, including the exploration of local microstructural evolution, polarization flip mechanisms, and bridging material design and device integration. This work aims to provide insights into the development of high-performance BT-based materials for solid-state cooling devices.

摘要

基于钛酸钡（BT）的无铅陶瓷因其具有大的自发极化、可调节的居里温度以及环境友好性，被视为固态电卡（EC）冷却器件极具潜力的候选材料。本文综述了基于BT的EC陶瓷在设计和优化方面的最新进展。关键内容包括电卡效应（ECE）的热力学原理、结构相变；以及诸如构建弛豫铁电体、多相共存等策略。最后，提出了未来的研究方向，包括探索局部微观结构演变、极化翻转机制，以及衔接材料设计与器件集成。这项工作旨在为开发用于固态冷却器件的高性能BT基材料提供见解。