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Normal Spectral Emissivity of Ta–W and Nb–Mo Alloys

Ludwig K. Thomas

Open publisher page 11 citations

Abstract

Measurements of the normal spectral emissivity of Ta–W and Nb–Mo alloys are reported. The emissivities were measured at 2000°, 2200°, and 2400°K in the wavelength range 0.4 to 4 μm. The emissivities of the alloys generally lie between the values of the pure constituents. The temperature coefficient and the x-point wavelength of Ta–W alloys change in a characteristic way. The measurements support the validity of the rigid band model.

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What this paper is about

Measurements of the normal spectral emissivity of Ta–W and Nb–Mo alloys are reported. The emissivities were measured at 2000°, 2200°, and 2400°K in the wavelength range 0.4 to 4 μm. The emissivities of the alloys generally lie between the values of the pure constituents. The temperature coefficient and the x-point wavelength of Ta–W alloys change in a characteristic way. The measurements support the validity of the rigid band model.

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Available abstract

Measurements of the normal spectral emissivity of Ta–W and Nb–Mo alloys are reported. The emissivities were measured at 2000°, 2200°, and 2400°K in the wavelength range 0.4 to 4 μm. The emissivities of the alloys generally lie between the values of the pure constituents. The temperature coefficient and the x-point wavelength of Ta–W alloys change in a characteristic way. The measurements support the validity of the rigid band model.

Key concepts: Emissivity, Materials science, Wavelength, Tantalum, Atmospheric temperature range, Melting point, Molybdenum, Analytical Chemistry (journal)

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