Obtaining the prototype of not cooled nozzle turbine blade from ceramic composite material

Lebedeva Yu.E., Shchegoleva N.E., Chaynikova A.S., Voronov V.A., Shavnev A.A.
UDC
666.7
DOI
10.18577/2307-6046-2020-0-3-58-65
Article PDF (Russian) (769.42 KB)
How to cite
Lebedeva Yu.E., Shchegoleva N.E., Chaynikova A.S., Voronov V.A., Shavnev A.A. Obtaining the prototype of not cooled nozzle turbine blade from ceramic composite material // Proceedings of VIAM. 2020. No. 3. DOI: 10.18577/2307-6046-2020-0-3-58-65. URL: https://test.viam.ru/en/journal/2020/3/6
Keywords
spark plasma agglomeration, ceramic composite material, silicon carbide, consolidation, treshchinostoykost, nozzle blade.
Abstract

Not cooled nozzle turbine blade prototype from ceramic composite material of SiC-SiCw–B4C–AlN system was obtained by the method of spark plasma sintering. The received prototype combines low values of density (3,4 g/cm3) and CTE (α=(5,3–5,4)10-6 K-1) with high level of mechanical and thermal characteristics: microhardness (25–26 GPa), flexural strength (413 MPa), crack resistance (6,2–6,9 MPa√м) and heat resistance at 1500 °C (weight change is 0,72–0,77% during 600 h). The spark plasma sintering method has allowed to obtain uniform structure of not cooled nozzle turbine blade prototype from ceramic composite material.

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