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Candoluminescence is the light given off by certain materials at elevated temperatures (usually when exposed to a flame) that has an intensity at some wavelengths which can, through chemical action in flames, be higher than the blackbody emission expected from incandescence at the same temperature. [1]
Candoluminescence, is light emitted by certain materials at elevated temperatures, which differs from the blackbody emission expected at the temperature in question. Mechanoluminescence, a result of a mechanical action on a solid Triboluminescence, generated when bonds in a material are broken when that material is scratched, crushed, or rubbed
An intense illumination is created when a flame fed by oxygen and hydrogen is directed at a cylinder of quicklime (calcium oxide), [2] due to a combination of incandescence and candoluminescence. Although it has long since been replaced by electric lighting, the term has nonetheless survived, as someone in the public eye is still said to be "in ...
The definition as substances that at a certain temperature "emit light at shorter wavelengths than would be expected for a typical blackbody radiator" appears problematic, in (visible) light of the fact that, if I am not mistaken, it follows from the laws of thermodynamics that a body at a temperature T cannot give off at any wavelength more energy than a black body at that same temperature.
Hot gas mantles. The lowest visible mantle has partially broken, reducing its light output An 85 mm Chance Brothers Incandescent Petroleum Vapour Installation. The mantle is a roughly pear-shaped fabric bag, made from silk, ramie-based artificial silk, or rayon.
As in many chemical reactions, chemiluminescence starts with the combining of two compounds, say A and B, to give a product C. Unlike most chemical reactions, the product C converts to a further product, which is produced in an electronically excited state often indicated with an asterisk:
The light emitted by thorium dioxide is higher in wavelength than the blackbody emission expected from incandescence at the same temperature, an effect called candoluminescence. It occurs because ThO 2 : Ce acts as a catalyst for the recombination of free radicals that appear in high concentration in a flame, whose deexcitation releases large ...
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