Conclusions
The variation of the proportion of the main fractions in the powders of green silicon carbide are a source of irregularity in the properties (porosity, pore structure, strength, and oxidation resistance) of silicon carbide electric heaters.
The properties of the heaters can be improved by increasing and stabilizing the proportion of main fraction. It would be advisable to define the relevant norms in the standard for granular silicon carbide more precisely.
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D. S. Rutman and O. G. Osintseva, in: Superduty Refractory Materials [in Russian] (edited by D. N. Poluboyarinov and D. S. Rutman), Metallurgiya, Moscow (1966), pp. 159–177.
V. L. Balkevich and B. I. Polyak, in: Superduty Refractory Materials [in Russian] (edited by D. N. Poluboyarinov and D. S. Rutman), Metallurgiya, Moscow (1966), pp. 213–220.
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Translated from Ogneupory, No. 4, pp. 46–51, April, 1977.
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Zakharenkov, V.K., Gurvich, L.G., Kolynina, V.I. et al. Grain-size distribution of silicon carbide as a factor in the properties of electric heaters. Refractories 18, 236–240 (1977). https://doi.org/10.1007/BF01281606
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DOI: https://doi.org/10.1007/BF01281606