Formation of Silicon Nitride Whiskers on a Ferro-Silicon Alloy at Room Temperature

Abstract

AFTER approximately ten years of operation, a calcium carbide furnace at Odda Smelteverk A/S, Norway, was temporarily stopped. At the bottom of the furnace a phase containing a ferro-silicon alloy was found. A sample taken from this bottom phase was kept in contact with air at room temperature. After a few weeks, formation of greyish-brown whiskers on the surface of the sample was observed.

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JOHNSON, E., GRJOTHEIM, K. & KROHN, C. Formation of Silicon Nitride Whiskers on a Ferro-Silicon Alloy at Room Temperature. Nature 190, 523–524 (1961). https://doi.org/10.1038/190523c0

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