Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter February 13, 2021

Effect of TiN particle size on wear behavior of SiAlON-TiN composites

  • Nurcan Çalış Açıkbaş Bilecik EMAIL logo , Bilge Yaman Islak and Gökhan Açıkbaş Bilecik
From the journal Materials Testing


SiAlON ceramics and their derivatives are potential materials for tribological applications where wear and friction are very crucial. TiN is a reinforcement phase and solid lubricant for SiAlON used to improve mechanical and tribological properties. In this study, αıı-SiAlON composites incorporating nano- and micron-size TiN particles were produced by a gas pressure sintering method. Tribological behavior of the composites was investigated based on reinforcement particle size and physico-mechanical properties. Tribology tests were performed with a computer-controlled tribometer under dry unlubricated conditions with ball-on-disk configuration. It was found that the TiN particle size has an effect on surface roughness and hence the coefficient of friction. When the TiN particle size decreased to nano size, the wear mechanism was tribochemical, whereas, when the particle size increased to micron size, severe mechanical wear was observed besides tribochemical wear.

Published Online: 2021-02-13
Published in Print: 2020-12-01

© 2020 by Walter de Gruyter Berlin/Boston

Downloaded on 5.12.2023 from
Scroll to top button