Abstract
Tribological behaviour of poly ether ether ketone (PEEK) reinforced with (0-15 wt%) nanometre sized potassium titanate powder has been investigated on the pin on disk configuration. It has been found that the tribological properties of PEEK composite get enhanced with the increase in concentration of potassium titanate content. Tribological studies of the PEEK polymer-matrix composite shows that it forms a thin transfer film which impact the wear behaviour by reducing the coefficient of friction and wear rate. The worn surface is characterized using optical microscope and scanning electron microscope for analyzing the surface morphology. X-ray diffraction pattern and Fourier-transform infrared spectroscopy of the potassium titanate were also observed. The hardness value of the PEEK composite was obtained by durometer hardness test which found to be improved with concentration of potassium titanate. Moreover, the composite resulted in reduced wear rate and coefficient of friction with the addition of potassium titanate to the PEEK.
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