Abstract
The phenomenon of grain boundary sliding with diffusional accommodation has been applied to the problem of incandescent lamp burn-out with good results. Accordingly, the results suggest that the extent to which the grain boundary shape deviates from a planar interface perpendicular to the wire axis is the critical factor in determining the life of the filament. In addition, a method for the optimization of the coil geometry, microstruc-ture, and temperature for increasing the filament life are suggested.
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Raj, R., King, G.W. Life Prediction of Tungsten Filaments in Incandescent Lamps. Metall Trans A 9, 941–946 (1978). https://doi.org/10.1007/BF02649838
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DOI: https://doi.org/10.1007/BF02649838
