Fracture toughness and abrasive wear of (ZrTi)B2–SiC ceramic composites with low-modulus hexagonal boron nitride inclusions; Ceramics International; Vol. 51, iss. 18, Pt. B

Fracture toughness and abrasive wear of (ZrTi)B2–SiC ceramic composites with low-modulus hexagonal boron nitride inclusions; Ceramics International; Vol. 51, iss. 18, Pt. B

Библиографические подробности
Источник:Ceramics International.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 51, iss. 18, Pt. B.— 2025.— P. 26401-26410
Другие авторы: Buyakov A. S. Ales Sergeevich, Marianna L. Lukjyanets, Fotin I. A. Igor Andreevich, Shmakov V. V. Vasily Valerjevich, Burlachenko A. G. Aleksandr Gennadjevich, Rudmin M. A. Maksim Andreevich, Buyakova S. P. Svetlana Petrovna
Примечания:Title screen
The study investigated the effect of hexagonal boron nitride (h-BN) content on fracture toughness and abrasive wear resistance of ZrB2–TiB2–SiC composites. Four compositions of ceramic composites were prepared from powder mixtures by pressure sintering at 1850 °C. In all the composites, the TiB2:ZrB2:SiC ratio was maintained as 16:69:15. The h-BN content in the ceramic composites was 3, 5, and 7 vol %. Sintering of the ceramic composites yielded the formation of (ZrTi)B2 solid solution, with the ratio of ZrB2 and TiB2 components remaining constant, irrespective of the h-BN content in the composites. The addition of hexagonal boron nitride into the (ZrTi)B2–SiC matrix was found to enhance fracture toughness through two mechanisms: crack propagation inhibition under residual compressive stresses and the Cook-Gordon mechanism. It was revealed that (ZrTi)B2–SiC–h-BN composites are more susceptible to abrasive wear when compared to (ZrTi)B2–SiC composites. Abrasive wear of (ZrTi)B2–SiC–h-BN composites occurs due to the formation of subsurface microcracks, their propagation to relatively weak interface between low-modulus h-BN inclusions and high-modulus (ZrTi)B2–SiC matrix, and subsequent separation of h-BN. The study showed that a greater number of subsurface microcracks are formed on the wear surface of (ZrTi)B2–SiC–h-BN composites compared to (ZrTi)B2–SiC composites. Furthermore, it was determined that composites containing 3 vol % h-BN exhibit the highest residual bending strength after abrasion
Текстовый файл
AM_Agreement
Язык:английский
Опубликовано: 2025
Предметы:
Fracture toughness
Abrasive wear
The cook-gordon mechanism
Solid solution (ZrTi)B2
Hexagonal boron nitride
электронный ресурс
труды учёных ТПУ
Online-ссылка:https://doi.org/10.1016/j.ceramint.2025.03.321
Формат: Электронный ресурс Статья
Запись в KOHA:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=680129

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