摘要
采用微波合成法制备了Fe2 O3 MnO2 CuO Co2 O3 体系红外辐射材料 ,测量了微波合成粉料的红外辐射性能 ,运用XRD ,IR ,SEM和图像分析等测试方法研究了合成粉料的结构和颗粒形态。结果表明 ,采用微波加热在 10 0 0℃保温 10min和在 90 0℃保温 30min ,均得到立方尖晶石结构的合成产物。与常规固相合成法相比 ,微波合成温度减低 ,反应时间缩短。合成粉料的颗粒细小均匀 ,平均粒度分别为 1.175 μm和 1.814 μm。微波合成粉料的红外辐射性能与采用常规固相合成法制备粉料的红外辐射率基本相当 ,其法向全辐射率均达到 0 .84。
Infrared radiation materials of Fe 2O 3 MnO 2 CuO Co 2O 3 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 powders with a cubic spinal structure were produced by heating at 1?000?℃ for 10?min or at 900?℃ for 30?min 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 1?000?℃ for 10?min and at 900?℃ for 30?min in microwave field exhibit average particle sizes of 1.175?μm and 1.814?μm, 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. [
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2001年第z2期127-130,共4页
The Chinese Journal of Nonferrous Metals
基金
武汉市"晨光计划"资助项目 (995 0 0 40 88G)
材料复合新技术国家重点实验室开放基金项目
