Effect of wSiC and wSi3N4 Whiskers on the Ultimate Dynamic Tensile Strength of cBN Composites from the BL Group

The effect of wSiC and wSi 3 N 4 whiskers on the ultimate dynamic tensile strength of superhard BL group cBN composites synthesized in the cBN–NbN–Al and cBN–NbN–Al 2 O 3 systems is considered. It is demonstrated that is ranged from 182 to 333 MPa and depends on the character of a filler. It is poin...

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Bibliographic Details
Published in:Journal of superhard materials 2024-08, Vol.46 (4), p.330-332
Main Authors: Stratiichuk, D. A., Devin, L. M., Richev, S. V., Turkevich, V. Z., Rumiantseva, Y. Y.
Format: Article
Language:English
Subjects:
Aluminum oxide
Chemistry
Chemistry and Materials Science
Letters to the Editor
Physical Chemistry
Tensile strength
Whisker composites
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Summary:The effect of wSiC and wSi 3 N 4 whiskers on the ultimate dynamic tensile strength of superhard BL group cBN composites synthesized in the cBN–NbN–Al and cBN–NbN–Al 2 O 3 systems is considered. It is demonstrated that is ranged from 182 to 333 MPa and depends on the character of a filler. It is pointed out that the addition of wSiC whiskers to the initial sintering mixture increases of sintered ceramic averagingly by 10–15% and, at the same time, the presence of Al 2 O 3 leads to a slight decrease in the material strength.
ISSN:1063-4576
1934-9408
DOI:10.3103/S1063457624040117