Implementation of the Cook-Gordon Mechanism in Y-TZP Based Ceramics; AIP Conference Proceedings; Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19)

Implementation of the Cook-Gordon Mechanism in Y-TZP Based Ceramics; AIP Conference Proceedings; Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19)

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19).— 2019.— [020046, 4 p.]
Main Author: Buyakov A. S. Ales Sergeevich
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors: Mirovoy Yu. A. Yury Aleksandrovich, Buyakova S. P. Svetlana Petrovna
Summary:Title screen
The structure and properties of ceramics based on tetragonal zirconia with addition of the low-modulus hexagonal boron nitride inclusions were studied. With a low content of h-BN inclusions (Y-TZP)-(h-BN) ceramics fracture toughness K1C increasing was observed. The greatest fracture toughness K1C=12 ± 0.53 MPa m1/2 was demonstrated by Y-TZP ceramics with 0.5 mass % of h-BN. Increasing of the fracture toughness with the introduction of lowmodulus h-BN inclusions into the ceramic matrix was due to the action of two dissipative mechanisms-zirconium oxide martensitic transformation and the cracks inhibition at relatively weak interphase boundaries of the matrix and lowmodulus h-BN inclusions. As the amount of h-BN increased, the contribution of martensitic transformation on fracture toughness decreased, which is associated with a decreasing of zirconium oxide tetragonal phase grain size and its transition to a stable state.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
керамика
структура
свойства
диоксид циркония
включения
нитрид бора
трещиностойкость
мартенситные превращения
оксид циркония
устойчивые состояния
Online Access:https://doi.org/10.1063/1.5131913
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661475

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