کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5349477 1503620 2015 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ferrites based infrared radiation coatings with high emissivity and high thermal shock resistance and their application on energy-saving kettle
ترجمه فارسی عنوان
پوشش های اشعه مادون قرمز مبتنی بر فریت ها با اشعه ماوراء بنفش و مقاومت بالا در برابر شوک حرارتی و کاربرد آنها در کتری انرژی صرفه جویی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Starting from Fe2O3, MnO2, Co2O3 and NiO powders, the ferrites based infrared radiation coatings with high emissivity and high thermal shock resistance were successfully prepared on the surface of carbon steel by high velocity oxy-fuel spraying (HVOF). The coating thickness was about 120-150 μm and presented a typical flat lamellar structure. The coating surface was rough and some submicron grade grains distributed on it. The infrared emissivity of the ferrites based coating by HVOF was over 0.74 in 3-20 μm waveband at 800 °C, which was obviously higher than that of the coating by brushing process in the short waveband. The bonding strength was 30.7 MPa between the coating and substrate, which was five times more than that of conventional coatings by brushing process. The combined effect of the superior bonding strength, typical lamellar structure, pre-existing microcracks and newly generated pores made the cycle times reach 27 when the coating samples were quenched from 1000 °C using water. Lastly, the infrared radiation coatings were applied on the underside of household kettle, and the energy-saving efficiency could reach 30.5%. The ferrites based infrared radiation coatings obtained in this work are good candidates for saving energy in the field of cookware and industrial high temperature furnace.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 344, 30 July 2015, Pages 223-229
نویسندگان
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