Hardness Behavior of Alumina-Zirconia Nanocomposites Synthesized by Gel Process
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Polish Acad Sciences Inst Physics
Access Rights
info:eu-repo/semantics/openAccess
Abstract
The alumina-zirconia composites are one of the relatively good and promising candidates for biomaterials application, due to biocompatibility and their mechanical properties that combines high flexural strength with a high toughness. The aim of the present work is to analyze the mechanical properties of these composites, where zirconia content was varied from 5 to 50 wt%. The citrate gel method, similar to the polymerized complex method, was used to synthesize these ceramics. Scanning electron microscopy, X-ray diffraction and microhardness tests are used to characterize synthesized materials. The examined material exhibits the behaviour of indentation size effect. Modified proportional resistance model are used to analyze the load dependence of the microhardness. X-ray diffraction analysis was used to calculation of the grain size and dislocation density. It is found that hardness is decreased when the zirconia content increases with enlargement of grain size. DOI: 10.12693/APhysPolA.123.299
Description
2nd International Congress on Advances in Applied Physics and Materials Science (APMAS) -- APR 26-29, 2012 -- Antalya, TURKEY
Keywords
Fixed Partial Dentures, Ceramics, Systems
Journal or Series
Acta Physica Polonica A
WoS Q Value
Q4
Scopus Q Value
Q3
Volume
123
Issue
2
