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Hafnium Oxide in Tungsten Filaments

Nature volume 115, page 194 (1925)Cite this article

Abstract

IT has been known for a long time that perfectly pure tungsten cannot be used for the manufacture of filaments for electric lamps on account of its “off-setting” structure due to recrystallisation. It has been found also that recrystallisation can be essentially influenced by suitable additions. Thus, for example, thorium oxide or silicon oxide can be used with good results.

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  1. Physical Chemistry Laboratory, Philips' Glowlamp Works, Ltd., Eindhoven (Holland)

    J. A. M. VAN LIEMPT

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  1. J. A. M. VAN LIEMPT
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VAN LIEMPT, J. Hafnium Oxide in Tungsten Filaments. Nature 115, 194 (1925). https://doi.org/10.1038/115194b0

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