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Issues »  Volume 39, Issue 7

Features of Formation of Phases and Structures During Reactive Hot Pressing Composites of the ZrB2–SiC System

S. V. Chornobuk, A. O. Goncharenko, O. U. Popov, V. A. Makara

Taras Shevchenko National University of Kyiv, 60 Volodymyrska Str., UA-01033 Kyiv, Ukraine

Received: 15.06.2017. Download: PDF

The ZrB2–SiC phase and structure formation during hot pressing of ZrC, Si, B4C and ZrB2 powder mixtures at 1800°С and 27 MPa for 5 min is investigated. Content of SiC in sintered materials reaches 50% vol. As shown, the material consolidation process strongly determined by physicochemical transformations during the sintering. Composite shrinkage passes through several stages, which correspond to certain reactions with formation of intermediate (ZrSi2) and final (ZrB2 and SiC) phases.

Key words: ceramics, zirconium diboride, reaction sintering, kinetic curve.

URL: http://mfint.imp.kiev.ua/en/abstract/v39/i07/0983.html

DOI: https://doi.org/10.15407/mfint.39.07.0983

PACS: 61.05.cp, 61.43.Gt, 81.05.Je, 81.20.Ev, 81.70.Fy, 82.33.Ln, 82.40.Ck

Citation: S. V. Chornobuk, A. O. Goncharenko, O. U. Popov, and V. A. Makara, Features of Formation of Phases and Structures During Reactive Hot Pressing Composites of the ZrB2–SiC System, Metallofiz. Noveishie Tekhnol., 39, No. 7: 983—993 (2017) (in Ukrainian)

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