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Ft-ir technique in insulating fire bricks studies

Author:

Viruthagiri G. and Sri Nithya Nareshananda

Subject Area:

Physical Sciences and Engineering

Abstract:

Fourier Transform infrared spectroscopy (FT-IR) has been carried out to analyze the both chemical and mineralogical composition of the IFB (Insulating Fire Bricks) samples. In the present study, the insulating fire bricks have been prepared by mixture of kaolin, plastic clay and sawdust materials. FT-IR technique has been used to find the mineralogical transformations of clay during firing temp in the range of 900°C - 1200°C. The FT-IR results indicate that insulating fire bricks have different mineralogical composition i.e., namely kaolin, quartz montmorillonite, hematite respectively. The increasing firing temperatures lead to the disappear of kaolinite (1114 cm-1) and the development of quartz (1096 cm-1). Mullite is developed from kaolin clay mineral and this is confirmed by FT-IR spectra

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