(1. 武漢理工大學(xué) 材料復(fù)合新技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室， 武漢 430070；
2. 武漢理工大學(xué) 材料科學(xué)與工程學(xué)院， 武漢 430070)
摘 要: 采用微波合成法制備了Fe2O3-MnO2-CuO-Co2O3體系紅外輻射材料，測(cè)量了微波合成粉料的紅外輻射性能，運(yùn)用XRD，IR，SEM和圖像分析等測(cè)試方法研究了合成粉料的結(jié)構(gòu)和顆粒形態(tài)。結(jié)果表明，采用微波加熱在1000℃保溫10min和在900℃保溫30min，均得到立方尖晶石結(jié)構(gòu)的合成產(chǎn)物。與常規(guī)固相合成法相比，微波合成溫度減低，反應(yīng)時(shí)間縮短。合成粉料的顆粒細(xì)小均勻，平均粒度分別為1.175μm和1.814μm。微波合成粉料的紅外輻射性能與采用常規(guī)固相合成法制備粉料的紅外輻射率基本相當(dāng)，其法向全輻射率均達(dá)到0.84。
關(guān)鍵字: 微波合成； Fe2O3-MnO2-CuO-Co2O3體系；顆粒形態(tài)； 紅外輻射性能
Fe2O3-MnO2-CuO-Co2O3 system in
frared radiation materials
（1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing，
Wuhan University of Technology, Wuhan 430070, P.R.China；
2. Institute of Materials Science and Engineering,
Wuhan University of Technology, Wuhan 430070, P.R.China）
Abstract:Infrared radiation materials of Fe2O3-MnO2-CuO-Co2O33 system were synthesized by microwave heating, and infrared radiation properties of synthesized powders were measured. XRD, IR, SEM and image analysis were used to investigate the microstructure and morphology characteristics of powders. The results show that pow, ders with a cubic spinal structure were produced by heating at 1000℃ for 10*!min or at 900℃ for 30min in microwave field, indicating apparent decrease of synthesis temperature and time compared with conventional heating. Microwave-synthesized powders have significant advantages of small particle size and narrow particle size distribution over conventionally-synthesized powders. The powders synthesized at 1000℃ for 10min and at 900℃ for 30min in microwave field exhibit average particle sizes of 1.175μm and 1.814μm, respectively. No remarkable difference was detected between infrared radiation properties of powders synthesized by microwave heating and conventional heating respectively, which exhibit total emissivities of 0.84.
Key words: microwave synthesis; Fe2O3-MnO2-CuO-Co2O3 system; morphology of particles; infrared radiation properties
