REFRACTIVE-INDEXES OF PYROLYTIC-GRAPHITE, AMORPHOUS-CARBON, AND FLAME SOOT IN THE TEMPERATURE-RANGE 25-DEGREES-C TO 600-DEGREES-C

被引：110

作者：

STAGG, BJ ^{[1
]}

CHARALAMPOPOULOS, TT ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV,DEPT MECH ENGN,BATON ROUGE,LA 70808

来源：

COMBUSTION AND FLAME | 1993年 / 94卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0010-2180(93)90121-I

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A technique was developed that allows the determination of the temperature dependence of the refractive indices of carbonaceous materials from ellipsometric intensity measurements on bulk samples. The refractive indices of the carbonaceous samples pyrolytic graphite, amorphous carbon and flame soot were determined over the temperature range 25-600-degrees-C and the spectral region 400-700 nm. For all three samples it was found that the inferred refractive index shows insignificant variation with temperature for this range of temperature and wavelength. These results differ by 30 percent or more from the predictions of the Drude Lorentz dispersion model which has been used extensively to predict the variation of the optical properties of carbonaceous particulates. A new set of dispersion constants is presented that accurately predict the indices in the temperature range 25-600-degrees-C and in the wavelength range 400-700 nm.

引用

页码：381 / 396

页数：16

共 36 条

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