Behavior of Some Refractory Hafnium and Tantalum Compounds in Plasma Flows
- Authors: Baklanova N.I.1, Lozanov V.V.1, Kul’kov A.A.2, Antipov E.A.2, Titov A.T.3
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Affiliations:
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
- Central Research Institute for Special Machinery Joint Stock Company
- Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 55, No 3 (2019)
- Pages: 231-236
- Section: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158654
- DOI: https://doi.org/10.1134/S002016851903004X
- ID: 158654
Cite item
Abstract
By reacting tantalum or hafnium carbide with iridium in the presence of a small amount of silicon, we have prepared refractory hafnium- and tantalum-containing materials consisting of a mixture of phases: the intermetallic compound MIr3, recrystallized tantalum or hafnium carbide, and iridium silicide. We have studied the behavior of the materials during an exposure to a high-speed plasma flow at a sample surface temperature of 2000°C and demonstrated that, owing to their special microstructure, the absence of pores, and the low oxidation rate of the iridium-containing components, they exhibit a good ablation resistance and that the hafnium system withstands a longer exposure.
About the authors
N. I. Baklanova
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
Email: lozanov.25@gmail.com
Russian Federation, ul. Kutateladze 18, Novosibirsk, 630128
V. V. Lozanov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: lozanov.25@gmail.com
Russian Federation, ul. Kutateladze 18, Novosibirsk, 630128
A. A. Kul’kov
Central Research Institute for Special Machinery Joint Stock Company
Email: lozanov.25@gmail.com
Russian Federation, Zavodskaya ul., Khotkovo, Moscow oblast, 141371
E. A. Antipov
Central Research Institute for Special Machinery Joint Stock Company
Email: lozanov.25@gmail.com
Russian Federation, Zavodskaya ul., Khotkovo, Moscow oblast, 141371
A. T. Titov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: lozanov.25@gmail.com
Russian Federation, pr. Akademika Koptyuga 3, Novosibirsk, 630090
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