Bk. Singh et Ns. Rawat, CHARACTERIZATION OF COAL FLY-ASH BY FTIR, XRD AND SEM, INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES, 2(5), 1995, pp. 241-244
Different characterization techniques such as Fourier Transform Infrar
ed spectroscopy, X-ray diffraction and Scanning Electron Microscopy ha
ve been applied to analyse the different fractions of flyash. FTIR stu
dies show the presence of quartz, alumina, hematite and different mine
ral matters whereas XRD confirm the presence of these minerals in diff
erent fractions of coal flyash. The morphology has been studied by SEM
and it is found that it consists largely of solid or hollow spherical
particles of variable size with small bulgings of siliceous and alumi
nous glass with the appearance of cracking at the tip of bulges.