Prospects for Improving Physical and Mechanical Properties of Corundum Ceramics

Yuri Komolikov; Vladimir Pudov

doi:10.4028/p-x3r5am

Paper Titles

Wood-Cement Composite and its Reinforcement with Wooden Bars
p.982

Evaluation of Magnetostriction and Differential Magnetic Permeability of Low-Alloy Structural Steel Specimens under Cyclic and Static Deformations
p.988

Features of the Microstructural Composition of Low-Alloyed Aluminum Alloys of the 6XXX Series with Small Additions of Zr and Sc
p.994

Prospects for the Synthesis of Silicate Geopolymer Materials Based on Ash and Slag Waste from Thermal Power Plants in the Russian Arctic Zone
p.1002

Prospects for Improving Physical and Mechanical Properties of Corundum Ceramics
p.1008

Physical Modification of Products Made of Soft Magnetic Materials under Texturing Effects
p.1014

Investigation of the Parameters of the Surface Layer of Steel 12X18H10T after Plastic Deformation
p.1020

Large-Scale Synthesis of Molybdenum Carbide Based Catalyst by Vacuum-Free DС Arc Plasma Method
p.1026

Application of the Method for Optical Measuring the Neck Profile to Determine the Hardening Curve of Aluminum from the Results of the Tensile Test
p.1032

HomeKey Engineering MaterialsKey Engineering Materials Vol. 910Prospects for Improving Physical and Mechanical...

Prospects for Improving Physical and Mechanical Properties of Corundum Ceramics

Abstract:

The prospects for improving microhardness and strength characteristics of corundum ceramics (Al₂O₃) modified by zirconium dioxide (3YSZ) are investigated. Ceramic samples are molded by semi-dry pressing followed by sintering. It is experimentally established that an increase in 3YSZ content in Al₂O₃/3YSZ composite ceramics fired at temperatures above 1450^oC increases strength and decreases microhardness. Ceramics of optimal composition (100–x) Al₂O₃–x 3YSZ, x = 5–10 wt. % 3YSZ has high strength and hardness values, and the average value is 700MPa and 22.3±1.8 GPa.

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Periodical:

Key Engineering Materials (Volume 910)

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1008-1013

DOI:

https://doi.org/10.4028/p-x3r5am

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Online since:

February 2022

Authors:

Yuri Komolikov, Vladimir Pudov*

Keywords:

Aluminum Oxide, Corundum Ceramics, Heat Resistance, Microhardness, Solid-Phase Synthesis, Strength, Zirconium Dioxide

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