Surface modification of coked alumina refractories by the deposition of sol-gel derived silica coatings - Campos, Karina Silva; Silva, Guilherme Frederico Bernardo Lenz e; Nunes, Eduardo H. M; Silva, Alysson M.A.; Bestard, Guillermo A.; Vasconcelos, Wander Luiz (Waste and Biomass Valorization, 2019)