Infrared spectroscopic study of articulated ceramic bricks

The IR vibrational spectra of the ceramic test samples were recorded and discussed which servesas the molecular fingerprint to give proof of identity without recourse to any other analytical method and yields basic information on the changes in the interatomic bonding. The possible use of ceramic rejects in the clayey body draws particular attention. The IR assignments of the raw samples are almost alike despite the different compositions and show stretching and bending modes of kaolinite at different absorption frequencies of 3694 cm-1 and 913 cm-1 respectively. The structural changes take place at different calcination temperatures which are interpreted in depth.An analysis of the mineralogical composition during a firing cycle up to 1200 0C has demonstrated that they possess satisfactory characteristics for the desired applications in the ceramic industry.