EKHI
The open database of optical and radiative data
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Publications: 169 Total entries: 1362
Thermal and electrical conductivities and spectral and total emissivities of nickel at high temperatures
S. C. Jain, T. C. Goel, I. Chandra
The method of Jain and Krishnan for measuring the thermal conductivity and other physical properties of metals at high temperatures is improved and values of these properties measured by the improved technique are reported in the temperature range 1150° to …
1 entries
The emissivity of transition metals in the infrared
R. A. Seban
Absorptivities of iron, nickel, and- platinum are presented for room temperature and emissivities for temperatures of the order of 2000 deg R for wavelengths from 1 to 15 microns. These are compared to the predictions made from Roberts’ theory for …
3 entries
NICKEL: Normal spectral emittance
IRON: Normal spectral absorptance
A method for measuring polarization in the vacuum ultraviolet
K. Rabinovitch, L. R. Canfield, R. P. Madden
A simple experimental method for determining the degree of plane polarization of a far ultraviolet monochromator was developed and tested. This determination requires only a measurement of the reflectance at 45° angle of incidence with two or more orientations of …
1 entries
Optical properties of cold- and hot-deposited gold films
John E. Davey, Titus Pankey
Gold films have been vacuum deposited onto quartz substrates in a temperature range from 5°to 750°C. Films which are deposited below about 50°C exhibit decreases in reflectivity of up to 25% over bulk values. Associated with this decrease are large …
12 entries
Spectral emissivity of hafnium at 0.65 μ
Marion L. Shaw
No abstract provided
1 entries
Effect of heat treatment on the optical properties of heavily doped silicon and Germanium
W. G. Spitzer, G. W. Gobeli, F. A. Trumbore
An experimental study has been made of the effect of high-temperature vacuum heat treatment on the infrared reflectivity of heavily doped germanium and silicon. The heat treatment produces a layer on the surface with optical properties differing from those of …
10 entries
SILICON: Normal spectral reflectance
An Integrating Sphere System for Measuring Average Reflectance and Transmittance
John M. Davies, Walter Zagieboylo
The optical properties of systems for protection against thermal radiation play a primary role in determining their effectiveness. An improved integrating sphere provides for determination of the average reflectance and transmittance of materials, each in a single measurement; this average …
28 entries
ALUMINUM: Normal spectral reflectance, Angular integrated reflectance
MAGNESIUM OXIDE CONTACT COATINGS: Angular integrated reflectance
Melting Point and Spectral Emissivity of Uranium Dioxide
Thomas C. Ehlert, John L. Margrave
No abstract provided
1 entries
Coefficients of reflection of magnesium oxide and magnesium carbonate.
F. Benford, G. P. Lloyd, S. Schwarz
No abstract provided
1 entries
The spectral emissivity of iron-nickel alloys
H. B. Wahlin, Robert Zentner, James Martin
The spectral emissivity for λ=6700Å has been determined for Fe‐Ni alloys and shows changes with temperature which indicate that in the temperature range of 1200°K to 1600°K abnormal behaviors exist which hitherto have not been suspected. A correlation of emissivity …
7 entries
[NICKEL + IRON] ALLOYS: Normal spectral emittance