Superhard Composites with Homogeneous Microstructure and Nanosized Binder, Obtained by Reactive Sintering in the System cBN–Al–TiC

Experimental results obtained on the synthesis, in a cubic apparatus, of composites based on diamond-like boron nitride c BN in the system c BN–Al–TiC are presented. It is shown that for the optimal ratio of the number, size, and relative arrangement of the particles of superhard material and a nano...

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Bibliographic Details
Published in:Glass and ceramics 2021-01, Vol.77 (9-10), p.379-383
Main Authors: Tkachenko, V. V., Filonenko, V. P., Andrianov, M. A., Ignatenko, O. V., Anokhin, A. S.
Format: Article
Language:English
Subjects:
Boron nitride
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Natural Materials
Sintering
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Summary:Experimental results obtained on the synthesis, in a cubic apparatus, of composites based on diamond-like boron nitride c BN in the system c BN–Al–TiC are presented. It is shown that for the optimal ratio of the number, size, and relative arrangement of the particles of superhard material and a nanostructured binder high-level properties can be attained without the obligatory intergrowth of particles of superhard crystals c BN– c BN. The composites were sintered at pressure 4.5 GPa and temperature 1450°C. The chosen thermobaric parameters guaranteed complete reactive interaction, homogeneity of the phase composition, and uniformity of the physicomechanical characteristics throughout the entire volume of large-size composites.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-021-00311-1