Dense ZrB2-MoSi2 Composite Coating Fabricated by a New Multi-Chamber Detonation Accelerator on Carbon/Carbon Composites

Autor: Kovaleva, Marina G., Goncharov, Igor Yu., Novikov, Vseslav Yu., Pavlenko, Ivan A., Yapryntsev, Maxim N., Vagina, Olga N., Sirota, Viacheslav V., Tyurin, Yu.N., Kolisnichenko, O.V.
Zdroj: Materials Science Forum; April 2020, Vol. 987 Issue: 1 p53-58, 6p
Abstrakt: A new multi-chamber detonation accelerator (MCDS) was applied to fabricate ZrB2–MoSi2 composite coating containing 20 mol.% of MoSi2 on carbon/carbon composites. Phase composition and microstructure of the coating were characterized by X-ray diffraction and scanning electron microscopy. The ZrB2–20MoSi2 coating displayed compact and lamellar microstructure with porosity lower than 1%, where SiO2 phase was uniformly distributed in the ZrO2 matrix. The coating was well-adhered with carbon/carbon composites. Silica, m-ZrO2, and small amount of Zr(MoO4)2 were formed.
Databáze: Supplemental Index