Особливості формування структури та фазового складу в процесі реакційного спікання кубічного нітриду бору зі сполуками Ti, Cr, V

Translated title of the contribution: Features of the formation of the structure and phase composition in the process of reactive sintering of boron cubic nitride with Ti, Cr, V compounds

K. V. Slipchenko, I. A. Petrusha, V. Z. Turkevich, V. M. Bushlya, J. E. Stahl

Research output: Contribution to journalArticlepeer-review

1 Citation (SciVal)

Abstract

Influence of sintering temperature on both phase composition and structure of ceramic matrix composites based on cubic boron nitride with binders in a form of Al and the Ti, Cr, V carbides are investigated by methods of physical materials science. As the object of study, three cBN–TiC–Al, cBN–Cr3C2–Al, cBN–VC–Al compositions containing 60% vol. cBN are selected. The composites are obtained by high-pressure high-temperature (HPHT) sintering in high-pressure apparatus AVTT-30 in the temperature range of 1600– 2450°C under pressure of 7.7 GPa. In the process of HPHT sintering of composites in the cBN–TiC–Al and cBN–Cr3C2–Al systems, the formation of titanium and chromium diborides is found at the temperatures of sintering Тsint ≥ 1850°С and Тsint ≥ 2150°С, respectively, simultaneously with the formation of alu-minium nitride.

Translated title of the contributionFeatures of the formation of the structure and phase composition in the process of reactive sintering of boron cubic nitride with Ti, Cr, V compounds
Original languageOther
Pages (from-to)1081-1091
Number of pages11
JournalMetallofizika i Noveishie Tekhnologii
Volume40
Issue number8
DOIs
Publication statusPublished - 2018

Subject classification (UKÄ)

  • Metallurgy and Metallic Materials

Keywords

  • Boron nitride
  • Carbides
  • Ceramic matrix composites
  • High pressure
  • Sintering

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