title: The obtaining of high-density specimens and analysis of mechanical strength characteristics of a composite based on ZrO2-WC nanopowders.
abstract: The structures, processes of shrinkage, and phase composition of the compact system ZrO2-WC, obtained by hot pressing with the transmission of high current, are considered in the article. We found that as a result of compaction, the ZrO2-WC-ceramics have uniform density distribution, with the following optimal mode consolidation values T = 1,350°C, P = 30 MPa and t = 2 min. These conditions allow us to achieve the best combination of ceramic properties by criteria density and strength.
authors.affiliation: Mechanical Department, Ukrainian State Academy of Railway Transport (UkrSART), Feyerbakh square 7, Kharkov 61001, Ukraine.
authors.forename: Edwin
authors.initials: E
authors.lastname: Gevorkyan
authors.affiliation: Mechanical Department, Ukrainian State Academy of Railway Transport (UkrSART), Feyerbakh square 7, Kharkov 61001, Ukraine.
authors.forename: Olga
authors.initials: O
authors.lastname: Melnik
authors.affiliation: Department of Physics and Technology, V.N. Karazin Kharkiv National University, Kurchatov Av. 31, Kharkov 61108, Ukraine.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Chishkala
keywords: Electroconsolidation; Fracture toughness; Hardness; ZrO2-WC