Microstructure and Mechanical Properties of SiC-Materials Sintered in the Liquid Phase with the Addition of a Finely Dispersed Agent
- Авторы: Perevislov S.1, Panteleev I.1, Shevchik A.1, Tomkovich M.2
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Учреждения:
- Saint Petersburg State Institute of Technology (Technical University)
- Ioffe Physical-Technical Institute of the Russian Academy of Sciences
- Выпуск: Том 58, № 5 (2018)
- Страницы: 577-582
- Раздел: Article
- URL: https://journals.rcsi.science/1083-4877/article/view/248927
- DOI: https://doi.org/10.1007/s11148-018-0148-x
- ID: 248927
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Аннотация
The free liquid phase sintering method was applied to obtain dense (relative density 99.5%) materials based on silicon carbide. A eutectic mixture of MgO, Y2O3 and Al2O3 of the composition corresponding to the coexisting garnet – spinel phase curve was used as the sintering agent. In the preparation of the charge powders, the method of chemical deposition from salt solutions was used, that produced eutectic composition oxides uniformly distributed on the silicon carbide powder particles. The materials produced show good mechanical properties: elastic strain energy 410 GPa, flexural strength 680 MPa, KIc = 6.0 MPa·m1/2, HV 21.5 GPa, the values of which are close to the corresponding indices for the hot-pressed carbide-silicon materials.
Об авторах
S. Perevislov
Saint Petersburg State Institute of Technology (Technical University)
Автор, ответственный за переписку.
Email: perevislov@mail.ru
Россия, Saint Petersburg
I. Panteleev
Saint Petersburg State Institute of Technology (Technical University)
Email: perevislov@mail.ru
Россия, Saint Petersburg
A. Shevchik
Saint Petersburg State Institute of Technology (Technical University)
Email: perevislov@mail.ru
Россия, Saint Petersburg
M. Tomkovich
Ioffe Physical-Technical Institute of the Russian Academy of Sciences
Email: perevislov@mail.ru
Россия, Saint Petersburg