DEPENDENCE OF SiAlON-TiN COMPOSITE PROPERTIES ON TiN REINFORCEMENT PARTICLE SIZES

Year 2018, Volume: 19 Issue: 2, 356 - 367, 30.06.2018

Nurcan Çalış Açıkbaş , Gökhan Açıkbaş

https://doi.org/10.18038/aubtda.381251

Cited By: 1

Abstract

TiN particle size is an effective parameter on
microstructure, mechanical and physical properties of SiAlON-TiN composites. In
this study, the effect of TiN particle size (nano and micron level) on
microstructural evolution, mechanical and physical properties were
investigated. The phase and microstructural evolution, SEM and the XRD
characterization methods were used to observe the effects of TiN particle size.
Indentation fracture toughness and Vickers hardness of the samples were
measured in order to evaluate the mechanical behavior. Archimedes principle was
used in order to determine bulk density and porosity. Correlation between TiN
particle size and hardness, fracture toughness, microstructure, phase evolution
was discussed. It was observed that decrease in particle size led to little improvement
in fracture toughness and hardness.

Keywords

SiAlON-TiN composites, TiN particle size, Microstructure, Hardness, Fracture toughness

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