Abstract
THE first carborundum furnace consisted of an iron bowl lined with carbon, and a carbon rod; a mixture of clay and carbon was introduced into the bowl, and the rod placed in the mixture. A current sufficient to fuse the mixture, or at least to bring it to a very high temperature, was now passed through the furnace, the iron bowl and carbon rod serving as terminals or electrodes. When the current was cut off, and the furnace had cooled down, it was opened, with the result that a few bright blue crystals were found surrounding the carbon rod.
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The Manufacture of Carborundum at Niagara Falls1. Nature 56, 42–43 (1897). https://doi.org/10.1038/056042a0
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DOI: https://doi.org/10.1038/056042a0
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