Title
Ex situ Raman mapping study of mechanism of cordierite formation from stoichiometric oxide precursors
Author
Nguyen Huu Huy Phuc, Teruhisa Okuno, Atsunori Matsuda, Hiroyuki Muto
Year
2014
Journal
Journal of the European Ceramic Society
Abstract
Ex situ Raman spectroscopy and Raman mapping showed that at temperatures below 1300 °C, magnesia reacted with either alumina or silica to form magnesium aluminate (spinel) or magnesium silicate. At 1300 °C or higher, the reaction between magnesium silicate and alumina, or spinel and silica, led to cordierite formation. Moreover, the presence of silica and spinel, and the disappearance of magnesium silicate at 1400 °C, indicated that cordierite formation was more favored by the reaction between alumina and magnesium silicate than by that between silica and spinel.
Instrument
NRS-7100
Keywords
Raman Imaging Microscopy, Raman spectroscopy, Solid-state reaction, Cordierite