Showing papers by "Stanislav V. Vassilev published in 1992"

TL;DR: A combination of methods, including separation, crystallo-optical techniques, SEM, TEM, X-ray, etc, were used to characterize the phase mineralogy, chemical composition, microstructure and some genetic phase pecularities in solid waste products from coal burning fly ashes, bottom ashes and lagooned ashes from the burning of Bobov Dol and East Maritza coal at thermoelectric power plants, respectively as discussed by the authors.