Accession Number : AD0680189

Title :   THERMAL, OPTICAL, AND ELECTRICAL PROPERTIES OF TUNGSTEN AND SILVER INVESTIGATED BY CLASSICAL ELECTROMAGNETIC THEORY.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s) : Grenis,Albert F.

Report Date : OCT 1968

Pagination or Media Count : 20

Abstract : An analytical study was made of the interrelation of thermal, optical, and electrical properties for the refractory metal tungsten and for the noble metal silver. Data available in the technical literature, together with extrapolation techniques, were employed within a framework of mathematical equations (derived from Maxwell's electromagnetic equations and associate optical equations) to obtain supplementary data over a wide range of frequencies and temperatures. Thermophysical properties of interest included the thermal radiation constant, such as the normal spectral emissivity; the optical constants, such as the refractive index and absorption coefficient; and the electrical constants, such as the electric conductivity and electric permittivity. (Author)

Descriptors :   (*SILVER, PHYSICAL PROPERTIES), (*TUNGSTEN, THERMAL PROPERTIES), ELECTROMAGNETIC PROPERTIES, THERMAL RADIATION, REFRACTIVE INDEX, ELECTRICAL CONDUCTIVITY, DIELECTRIC PROPERTIES, REFRACTORY METALS, OPTICAL PROPERTIES, RELAXATION TIME, HIGH TEMPERATURE, INFRARED RADIATION

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE