Material‐dependent infrared transmittance of mineral wool
Material‐dependent infrared transmittance of mineral wool
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矿棉的材料相关红外透射率
DOI：
10.1063/1.97072
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发表时间：
1986
影响因子：
4
通讯作者：
C. Ribbing
中科院分区：
文献类型：
--
作者：
G. Ljungdahl;C. Ribbing
本文报道了矿棉的镜面红外透射率，并与原材料硅酸盐玻璃的光学性质进行了比较。羊毛在8.3 μm处的透射率峰值（以前未报道）与玻璃体在相同波长处的反射率最小值相关。可以得出结论，这种纤维绝缘的辐射行为不能用灰色模型来描述，忽略了分散的原材料。它还表明，透射率峰值远高于可以从玻璃的吸收预期。这被初步解释为通过非常小的角度的前向散射的效果，从而增加镜面透射率。
The specular infrared transmittance of mineral wool is reported and compared to the optical properties of the raw material, a silicate glass. A transmittance peak at 8.3 μm for the wool, not previously reported, is correlated to the reflectance minimum at the same wavelength for the bulk glass. It is concluded that the radiative behavior of this fibrous insulation cannot be described by gray models, neglecting the dispersion of the raw material. It is also demonstrated that the transmittance peak values are much higher than could be expected from the absorption of the glass. This is tentatively explained as an effect of forward scattering through very small angles, thus increasing the specular transmittance.