Optical properties of liquid aluminum and Al-Ce alloy

被引：17

作者：

Akashev, LA ^{[1
]}

Kononenko, VI ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Chem, Ural Div, Yekaterinburg 620219, Russia

来源：

HIGH TEMPERATURE | 2001年 / 39卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

Electrical Conductivity; Absorption Coefficient; Optical Property; Charge Carrier; Refraction;

D O I：

10.1023/A:1017502424054

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Beattie ellipsometric method is used La investigate the index of refraction and the absorption coefficient of liquid aluminum and Al-3 at. % Ce alloy in the wavelength range from 0.44 to 2.3 mum at a temperature of 1173 K. The experimental results are used to calculate the dispersion dependences of light conductance, reflectivity, and functions of characteristic loss of electron energy. The results of measurements in the infrared (IR) spectrum are used to determine the concentration of conduction electrons, plasma frequency, relaxation frequency, and the limiting light conductance. It turns out that an addition of 3 at. % Ce to aluminum causes almost no change in the concentration of charge carriers, whereas the relaxation frequency increases, which leads to a decrease in the electrical conductivity of the liquid alloy.

引用

页码：384 / 387

页数：4