Effect of Silicon Carbide Content on Bulk Electrical Resistance of Free-Sintered AlN–SiC Composites

— It is reported that the bulk electrical resistance of AlN–SiC composites decreases from 1.1 × 10 8 до 3.0 × 10 2  Ω cm when the content of silicon carbide increases from 20 to 55 wt %. In such composites, with a SiC content less than 50%, the porosity does not exceed 3% and, therefore, does not ha...

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Bibliographic Details
Published in:Journal of superhard materials 2023-10, Vol.45 (5), p.402-404
Main Authors: Chasnyk, V. I., Chasnyk, D. V., Kaidash, O. M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composite materials
Electrical resistance
Letters to the Editor
Physical Chemistry
Silicon carbide
Sintering (powder metallurgy)
Straight lines
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Summary:— It is reported that the bulk electrical resistance of AlN–SiC composites decreases from 1.1 × 10 8 до 3.0 × 10 2  Ω cm when the content of silicon carbide increases from 20 to 55 wt %. In such composites, with a SiC content less than 50%, the porosity does not exceed 3% and, therefore, does not have a significant effect on the value of electrical resistance. The detected dependence of the electrical resistance on the SiC content has the form of a straight line inclined to the abscissa axis, if the resistance values are given on a logarithmic scale.
ISSN:1063-4576
1934-9408
DOI:10.3103/S1063457623050040