Experimental apparatus for radiation characteristics of semi-transparent materials at high temperature:A direct radiometric method

IF 4.9 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2025-02-24 DOI:10.1016/j.ijthermalsci.2025.109809

Yanfen Xu , Kaihua Zhang , Longfei Li , Kun Yu , Yufang Liu

{"title":"Experimental apparatus for radiation characteristics of semi-transparent materials at high temperature:A direct radiometric method","authors":"Yanfen Xu , Kaihua Zhang , Longfei Li , Kun Yu , Yufang Liu","doi":"10.1016/j.ijthermalsci.2025.109809","DOIUrl":null,"url":null,"abstract":"<div><div>The accurate determination of radiation characteristics for semi-transparent materials is essential for the transmission of radiation energy and optical signals at high temperatures. However, distinguishing spontaneous, transmitted, and background radiation in the signals received by the detector poses significant challenges due to the inherent properties of semi-transparent materials. To address this, an experimental apparatus based on the direct radiometric method has been established, operating within a temperature range of 473–1473 K and a wavelength range of 3–12 μm. An integrated approach that employs an ancillary blackbody is introduced to simultaneously measure radiation characteristics of semi-transparent materials. The reliability of experimental equipment and method is evaluated through the measurement of radiation characteristics of silicon carbide and sapphire samples. Additionally, the variation of transmissivity, emissivity, and reflectivity of the sapphire sample is analyzed at various temperatures, exploring the trends of these parameters with respect to temperature and wavelength.</div></div>","PeriodicalId":341,"journal":{"name":"International Journal of Thermal Sciences","volume":"213 ","pages":"Article 109809"},"PeriodicalIF":4.9000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Thermal Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1290072925001322","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The accurate determination of radiation characteristics for semi-transparent materials is essential for the transmission of radiation energy and optical signals at high temperatures. However, distinguishing spontaneous, transmitted, and background radiation in the signals received by the detector poses significant challenges due to the inherent properties of semi-transparent materials. To address this, an experimental apparatus based on the direct radiometric method has been established, operating within a temperature range of 473–1473 K and a wavelength range of 3–12 μm. An integrated approach that employs an ancillary blackbody is introduced to simultaneously measure radiation characteristics of semi-transparent materials. The reliability of experimental equipment and method is evaluated through the measurement of radiation characteristics of silicon carbide and sapphire samples. Additionally, the variation of transmissivity, emissivity, and reflectivity of the sapphire sample is analyzed at various temperatures, exploring the trends of these parameters with respect to temperature and wavelength.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.