Development and study of the composite ceramic materials based on ZrO2 — Al2O3
Tatyana O. Obolkina, M. A. Goldberg, S. V. Smirnov, О. А. Антонова, Д. Р. Хайрутдинова, Dmitry A. Utkin, Nikita L. Kotelnikov
2022Transactions of the Kоla Science Centre of RAS Series Engineering Sciences32 citationsDOIOpen Access PDF
Abstract
In this work, the effect of a complex additives based on Na2Si2O5 and Mn2+ on the properties and sintering temperature of ZrO2 ceramic material stabilized with 3 mol. % Y2O3 — 2.5 wt. % Al2O3 (Z–A) was studied. It has been found that the introduction of complex additives increases the strength in three-point bending and the microhardness of ceramic materials. The highest strength (704 ± 45 MPa) and microhardness (9.2 ± 0.5 GPa) are achieved on the Z–A material containing with 1 wt. % Na2Si2O5 and 0.25 mol. % Mn2+ sintered at 1300 °C.
Topics & Concepts
Indentation hardnessCeramicMaterials scienceSinteringComposite numberComposite materialFlexural strengthMicrostructureMaterial Properties and ApplicationsEngineering Technology and MethodologiesAdvanced ceramic materials synthesis