The Influence of in situ Formed TiB 2 –VB 2  Borides on the Structure and Properties of Hot-Pressed B 4 C–(TiH 2 –VC) Ceramic System

O. N. Kaidash; V. Z. Turkevich; V. V. Ivzhenko; P. P. Itsenko; V. N. Tkach

doi:10.3103/S1063457618060011

The Influence of in situ Formed TiB₂–VB₂ Borides on the Structure and Properties of Hot-Pressed B₄C–(TiH₂–VC) Ceramic System

Authors: Kaidash O.N.¹, Turkevich V.Z.¹, Ivzhenko V.V.¹, Itsenko P.P.¹, Tkach V.N.¹
Affiliations:
1. Bakul Institute for Superhard Materials
Issue: Vol 40, No 6 (2018)
Pages: 365-373
Section: Production, Structure, Properties
URL: https://ogarev-online.ru/1063-4576/article/view/186337
DOI: https://doi.org/10.3103/S1063457618060011
ID: 186337

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Abstract

A method of the reaction hot pressing was used to produce composites from the B₄C–(5–15%)(TiH₂–VC) system, established the peculiarities of their structures and measured physico-mechanical parameters. The dense dispersion-hardened materials having a high bending strength (R_bm = 420–580 MPa) and increased fracture toughness (K_Ic = 4.1–4.8 MPa·m^1/2) on retention of the HKN = 19–20 GPa are promising for the use in the conditions of the severe abrasive wear.