【摘要】 对内行研制的Mn、Fe、Co、Cu氧化物陶瓷及其复合材料进行了红外光谱分析,结果表明:Mn、Fe、Co、Cu氧化物陶瓷材料具有优越的宽波段红外比辐射率,在波数为4800cm^-1到400cm^-1的区间内ε_tatel>0.93。光谱显示,涂以辐射层的复合材料的表面光学性质发生了很大变化,由于长石的加入和界面全内反射引起的辐射率降低得到改善。FT-IR反射光谱研究表明:此种材料在几乎整个红外区间都有较低的反射率,并且反射光谱与辐射光谱间存在一致的对应关系,该材料的加热实验证明其效果优于目前市售的几种红外辐射材料。同时对材料的耐热冲击性也作了研究。更多还原

【Abstract】 The infrared spectra of composite ceramics of Mn, Fe, Co and Cu oxides are studied. The experimental results show that these composite ceramics possess excellent specific infrared emissivity in a broad band. In the range of 4800—400cm^-1, the total emissivity is more than 0.93. The surface optical properties of the ceramics are greatly changed when an efficient radiation layer is sprayed on their surfaces. Because the total inner reflection caused by the boundary surface and addition of feldspar are restrained by this radiation layer, the emissivity of this kind of composite ceramics is improved, Heating measurement shows that the infrared radiation heating effect of the material is better than that of several kinds of commercial radiation materials and the thermal stress properties are also better.更多还原