Production and Properties of B4C-TiB2 Composites with Isotropic Eutectic Microstructure.

Autor:	Husarova, I. O., Potapov, O. M., Solodkyi, Ie. V., Bogomol, Iu. I.
Předmět:	EUTECTIC alloys MICROSTRUCTURE TEMPERATURE
Zdroj:	Powder Metallurgy & Metal Ceramics; Jul2018, Vol. 57 Issue 3/4, p209-214, 6p
Abstrakt:	Directionally reinforced B4C-TiB2 eutectic alloys were produced from green powder compacts by floating zone melting. Their mechanical properties were studied over a wide range of temperatures (25-1600°C). The high-temperature strength of the reinforced B4C-TiB2 composites hardly changes with increasing temperature and reaches about 200 MPa at 1600°C. Mechanical grinding and subsequent spark plasma sintering were used to produce reinforced B4C-TiB2 composites with an isotropic eutectic microstructure. The microstructure of the bulk-reinforced ceramic samples was examined. The developed ceramics meet the requirements imposed on high-temperature creepresistant and oxidation-resistant materials for reusable hypersonic vehicles. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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