文献类型：期刊文献

中文题名：大气等离子喷涂Al_(2)O_(3)涂层吸发比的影响因素研究

英文题名：Study on Influencing Factors of Solar Absorptance to IR Emittance Ratio of Al_(2)O_(3) Coating by Atmospheric Plasma Spraying

作者：朱含[1];王卫泽[1];杨挺[1];方焕杰[1];叶东东[1];李东鹏[1]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237

年份：2025

卷号：54

期号：22

起止页码：123

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金项目(51775189);上海航天科技创新基金项目(SAST2019056)。

语种：中文

中文关键词：涂层厚度;孔隙形貌;吸发比;水平孔隙;孔隙尺寸

外文关键词：coating thickness;pore morphology;solar absorptance to infrared radiation(IR)emittance ratio;horizontal pores;pore size

摘要：采用大气等离子喷涂(APS)技术在碳钢表面制备了Al_(2)O_(3)涂层,分析了涂层厚度对其吸发比的影响。此外,使用扫描电镜(SEM)对涂层孔隙进行表征,详细研究了相同涂层厚度下孔隙率及孔隙形貌对Al_(2)O_(3)涂层吸发比的影响规律。结果表明:在现有涂层厚度范围内,随涂层厚度增加,其吸发比不断降低,最终趋于稳定;涂层吸发比随孔隙率的增加呈先增加后减小的趋势,当涂层孔隙率处于6%~10%内,涂层水平孔隙对吸发比有较大的影响;当涂层孔隙率大于10%时,涂层孔隙尺寸是吸发比的主要影响因素。
Al_(2)O_(3) coating was prepared on carbon steel surface by atmospheric plasma spraying(APS).The influence of different coating thickness on the solar absorptance to infrared radiation(IR)emittance ratio of Al_(2)O_(3) coating was analyzed.In addition,scanning electron microscopy(SEM)was used to characterize the pores in the coating,and the influence of porosity and pore morphology on the solar absorptance and IR emittance ratio of Al_(2)O_(3) under the same coating thickness was studied in detail.The results show that,with the increase of the thickness of coating,the solar absorptance to IR emittance ratio of Al_(2)O_(3) coating decreases and finally tends to be stable.The solar absorptance to IR emittance ratio of Al_(2)O_(3) coating increases first and then decreases with the increase of porosity.When the porosity of the coating is in the range of 6%-10%,the pores in the direction parallel to the matrix have a great influence on the solar absorptance to IR emittance ratio.When the porosity of the coating is more than 10%,the pore size of the coating is the main factor for IR emittance ratio.