Synthesis of new Vanadium Cordierite Pigment by Sol-Gel Processing
A new ceramic pigment with the cordierite high temperature structure was synthesised by sol–gel processing. A small region of a solid solution phase was detected containing <5 wt-%V2O5. The crystallisation behaviour and thermal stability of the pigment was studied. Unit cell parameters, crystallite size, and the phase constitution of calcined powders were determined by X-ray diffraction. The xerogel powders were studied by thermal analysis and infrared spectroscopy. The
compositions of fired samples were obtained by inductively coupled plasma analysis and the L*a*b* colour parameters were measured.