【摘要】：以氧化鈰和碳化硼為高輻射填料,以陶瓷前驅(qū)體樹脂為涂層成膜物,制備了不同厚度、不同填料體積含量的高輻射涂層,測(cè)試了涂層室溫和1100 K發(fā)射率以及其抗熱震性,研究了涂層厚度和填料體積含量對(duì)其發(fā)射率和抗熱震性能影響。結(jié)果顯示,該涂層發(fā)射率隨涂層厚度的增加而迅速增加,然后趨于穩(wěn)定,具有穩(wěn)定發(fā)射率的最小涂層厚度約為50μm,涂層1100 K高溫發(fā)射率≥0.90。填料體積含量50vol.%時(shí),涂層高溫下結(jié)構(gòu)完整性好且抗氧化能力強(qiáng),經(jīng)過(guò)20次1100 K-室溫的抗熱震循環(huán),涂層無(wú)剝離和脫落。
[Abstract]:Using cerium oxide and boron carbide as high radiation filler and ceramic precursor resin as coating film material, high radiation coating with different thickness and volume content of filler was prepared. The emissivity and thermal shock resistance of the coating at room temperature and 1100 K were measured. The effects of coating thickness and filler volume content on emissivity and thermal shock resistance were studied. The results show that the emissivity of the coating increases rapidly with the increase of the coating thickness, and then tends to be stable. The minimum coating thickness with stable emissivity is about 50 渭 m, and the high temperature emissivity of the coating at 1100 K is 鈮，

本文編號(hào)：2185972