Structure and Properties of Directionally Solidified Alloy of B4C–TaB2–SiC System
M. I. Upatov1, E. R. Abdullaieva1, V. V. Bolbut2, Yu. I. Bogomol1
1National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, 37 Peremohy Ave., UA-03056 Kyiv, Ukraine
2Otto von Guericke University, 2 Universitätsplatz, DE-39106 Magdeburg, Germany
Received: 04.06.2019; final version - 21.10.2020. Download: PDF
The 27B4C–25.5TaB2–47.5SiC (% mol.) composite is prepared by a floating zone method based on crucibleless zone melting of compacted powders. The influence of crystallization rate on the structure and properties of the composite is studied. Vickers hardness, fracture toughness, and flexural strength of the composite are 32–35 GPa, 4.3–5.2 MPa⋅m1/2, and 223–252 MPa, correspondingly.
Key words: ternary eutectic, hardness, fracture toughness, flexural strength, boron carbide, silicon carbide, tantalum diboride.
URL: http://mfint.imp.kiev.ua/en/abstract/v42/i12/1701.html
DOI: https://doi.org/10.15407/mfint.42.12.1701
PACS: 61.05.cp, 61.43.Gt, 62.20.-x, 62.20.M-, 68.37.Hk
Citation: M. I. Upatov, E. R. Abdullaieva, V. V. Bolbut, and Yu. I. Bogomol, Structure and Properties of Directionally Solidified Alloy of B4C–TaB2–SiC System, Metallofiz. Noveishie Tekhnol., 42, No. 12: 1701—1713 (2020) (in Ukrainian)