{"title":"Multiple scattering effect of spherical LaPO4 enhanced broadband emissivity for heat dissipation of electronic devices","authors":"Chuanqing Sun, Mingrui Liu, Wei Song, Chenxi Bao, Wanting Zhu, Wenyu Zhao, Qingjie Zhang","doi":"10.1016/j.mtphys.2024.101584","DOIUrl":null,"url":null,"abstract":"High-performance infrared radiation materials with excellent broadband emissivity, remarkable thermal stability, and scalable fabrication processes play a vital role in heat dissipation and energy-saving applications. However, current strategies of broadband emissivity enhancement remain inadequate. This study investigates the impact of LaPO<sub>4</sub> morphology on the infrared radiation properties of composite coating. Three distinct morphologies (sphere, rod and mesh sheet) of LaPO<sub>4</sub> are explored using a simulation-aided method. The composite coating filled with large-sized spherical LaPO<sub>4</sub> particles with low diffuse reflection, exhibits a significantly enhanced infrared radiation capability, resulting in a broadband emissivity of 95.6%. Furthermore, the composite coating achieves a large temperature reduction of 6.2 °C and high cooling efficiency of 11.9% when subjected to a heating power of 2250 W/m<sup>2</sup>. This work provides an innovative strategy for regulating material emissivity through morphology control, benefiting advancements low-cost radiation heat transfer technology.","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":null,"pages":null},"PeriodicalIF":10.0000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Today Physics","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.mtphys.2024.101584","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
High-performance infrared radiation materials with excellent broadband emissivity, remarkable thermal stability, and scalable fabrication processes play a vital role in heat dissipation and energy-saving applications. However, current strategies of broadband emissivity enhancement remain inadequate. This study investigates the impact of LaPO4 morphology on the infrared radiation properties of composite coating. Three distinct morphologies (sphere, rod and mesh sheet) of LaPO4 are explored using a simulation-aided method. The composite coating filled with large-sized spherical LaPO4 particles with low diffuse reflection, exhibits a significantly enhanced infrared radiation capability, resulting in a broadband emissivity of 95.6%. Furthermore, the composite coating achieves a large temperature reduction of 6.2 °C and high cooling efficiency of 11.9% when subjected to a heating power of 2250 W/m2. This work provides an innovative strategy for regulating material emissivity through morphology control, benefiting advancements low-cost radiation heat transfer technology.
期刊介绍:
Materials Today Physics is a multi-disciplinary journal focused on the physics of materials, encompassing both the physical properties and materials synthesis. Operating at the interface of physics and materials science, this journal covers one of the largest and most dynamic fields within physical science. The forefront research in materials physics is driving advancements in new materials, uncovering new physics, and fostering novel applications at an unprecedented pace.