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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • V. Bakul Institute for Superhard Materials
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Metallurgi och metalliska material

Nyckelord

Originalspråkannat
Sidor (från-till)1081-1091
Antal sidor11
TidskriftMetallofizika i Noveishie Tekhnologii
Volym40
Utgåva nummer8
StatusPublished - 2018
PublikationskategoriForskning
Peer review utfördJa