Synthesis and characterization of Al2O3 - ZrO2-based eutectic ceramic powder material dispersion-hardened with ZrB2 and WB particles prepared by SHS

Столин, А. М.; Бажин, П. М.; Konstantinov, A. S.; Чижиков, А. П.; Kostitsyna, E.V.; Bychkova, M. Ya.

doi:10.1016/j.ceramint.2018.04.225

Cited by 18 publications

(2 citation statements)

References 20 publications

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“…Method SHS Today, a large number of various materials based on oxide ceramics are obtained, both in the form of powders and in the form of compact workpieces [9]. For example, in [10], a ceramic powder was obtained based on an oxide eutectic Al2O3-ZrO2, strengthened by particles of zirconium diboride and tungsten boride. In [11,12], as a result of the combination SHS dynamic compaction were obtained composites Al2O3-ZrB2 and Al2O3-TiB2 with high mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the SHS process initiation in the base mixture during HFC heating and the dependence of the combustion rate on various factors

Ишков

2021

E3S Web Conf.

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This work is devoted to the study of promising materials - liquid-phase systems aluminum-boron oxide. These materials after SHS process form a boride coating that provides high strength and wear resistance of steel parts. The article describes the features of the initiated SHS process and the nature of the mixture combustion, studies of the HFC heating effect for SHS process. At the first research stage, the dependence of initiation SHS in all investigated compositions on the characteristic size of the sample and the composition of the base mixture was determined. The combustion rate was estimated from the combustion time of the sample from one end of the sample to the other. The burning rate was also estimated SHS-compositions on the particle size of the reagents. At the second stage of the research, the composition of the base mixture was modified by the introduction of a flux P-0.66. The addition of flux made it possible to significantly reduce the burning rate and compare in time SHS process obtaining boron during combustion of a modified composition and the process of HFC boriding high-speed.

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Section: Introductionmentioning

confidence: 99%

Investigation of the SHS process initiation in the base mixture during HFC heating and the dependence of the combustion rate on various factors

Ишков

2021

E3S Web Conf.

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“…Currently, aluminum oxide-based ceramic materials are broadly used in cutting tool molds, sealing rings and various high temperature engine parts [7][8][9]. However, the low-fracture toughness and the brittleness contribute to the aluminum oxide-based ceramic risk of being easily chipped in the course of processing, which seriously influences the cutting performance of the ceramic tool material [10][11][12]. The self-lubricating ceramic tool materials with excellent mechanical properties and friction properties have always been people's pursuit goal.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance of Al2O3/Ti(C,N)-Added ZrO2 Whisker and NanoCoated CaF2@Al(OH)3 Powder

Xiao

Chen

et al. 2020

Applied Sciences

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The Al2O3/Ti(C,N) ceramic material added micron ZrO2 whisker and nano coated CaF2@Al(OH)3 powder was fabricated. The micron ZrO2 whisker was for the toughening and reinforcing phase and the nano coated CaF2@Al(OH)3 powder was the lubricant. For obtaining a ceramic material with optimal comprehensive mechanical properties and friction properties, the influences of different compositions of the ZrO2 whisker and nano coated CaF2@Al(OH)3 powder on the microstructure and mechanical properties were analyzed, respectively. The result demonstrated that as the addition of the ZrO2 whisker was 6 vol% and the addition of the nano coated CaF2@Al(OH)3 powder was 10 vol%, the optimal self-lubricating ceramic material had optimal mechanical properties. The hardness of the ceramic material was 16.72 GPa, the flexural strength was 520 MPa and the fracture toughness reached 7.16 MPa·m1/2. The formation of the intragranular structure, whisker toughening and the phase transition of ZrO2 were the main mechanisms.

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SHS Extrusion of a Composite Material Based on Aluminum-Magnesium Spinel

Чижиков

Konstantinov

Бажин

et al. 2023

Lecture Notes in Mechanical Engineering

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Synthesis and characterization of Al2O3 - ZrO2-based eutectic ceramic powder material dispersion-hardened with ZrB2 and WB particles prepared by SHS

Cited by 18 publications

References 20 publications

Investigation of the SHS process initiation in the base mixture during HFC heating and the dependence of the combustion rate on various factors

Investigation of the SHS process initiation in the base mixture during HFC heating and the dependence of the combustion rate on various factors

Preparation and Performance of Al2O3/Ti(C,N)-Added ZrO2 Whisker and NanoCoated CaF2@Al(OH)3 Powder

SHS Extrusion of a Composite Material Based on Aluminum-Magnesium Spinel

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