The emissivity of metals and oxides. I. Nickel Oxide (NiO) in the range 600° to 1300° C (1914)
National Bureau of Standards · leaf 16
er, have questioned this and have observed marked temperaturecoefficients of AA with several metals. For \ = 0.658/* theyfound that the emissivity of molybdenum, tantalum, and carbondecreases with increasing temperature, while for tungsten anincrease of emissivity with increasing temperature takes… … .500 .600 .700 WAVE LENGTH IN fl FlG. 6.—Monochromatic emissivity vs. wave length of temperature. That the emissivity of NiO for any wave lengthin the visible spectrum decreases with increasing temperature isfirmly established by the present observations. In Fig. 8 are given the corrections in…
Rays and radiation · Thermometry, pyrometry and calorimetry · Heat flow, thermal and thermodynamic processes
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