Al2O3-Based Ceramic Composites with a High Brittle Fracture Resistance
- Авторлар: Podzorova L.I.1, Il’icheva A.A.1, Pen’kova O.I.1, Antonova O.S.1, Baikin A.S.1, Konovalov A.A.1
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Мекемелер:
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
- Шығарылым: Том 55, № 6 (2019)
- Беттер: 628-633
- Бөлім: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158715
- DOI: https://doi.org/10.1134/S0020168519060128
- ID: 158715
Дәйексөз келтіру
Аннотация
We examine synthesis conditions of precursors to ZrO2–Al2O3–CeO2 powders modified with calcium cations. The precipitation procedure and the aging of reaction systems of precursors to the synthesized composites are shown to influence the morphology and particle size of the nanopowders and the evolution of the phase composition, microstructure, and mechanical characteristics of composites prepared from them. The composites offer a high brittle fracture resistance due to the combined effect of transformation and dispersion hardening owing to the presence of T-ZrO2-based solid solutions and calcium hexaaluminates (bending strength, up to 1000 MPa; fracture toughness KIc, up to 10.5 MPa m1/2).
Негізгі сөздер
Авторлар туралы
L. Podzorova
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
A. Il’icheva
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
O. Pen’kova
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
O. Antonova
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
A. Baikin
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
A. Konovalov
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Email: ludpodzorova@gmail.com
Ресей, Leninskii pr. 49, Moscow, 119334
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