Thermal binder removal is time-consuming in preparing ceramic parts using 3D printing methods. Thermal degradation proceeds uniformly over the whole volume of the body, usually by the random scission and side group elimination of the polymeric binder. The low molecular weight products of degradation diffuse towards the body surface or the binder–gas interface, where they evaporate.  If oxygen is present, oxidative degradation proceeds from the body's surface. If the oxidative degradation produces solid intermediates, a dense and brittle surface layer can be produced. These intermediate oxidative products can slow down the overall binder removal and even can result in defects.
Our work focused on preparing low-viscosity photosensitive ceramic suspensions suitable for DLP printing. The suspensions were tuned to be sensitive to visible light with a wavelength of λ=465 nm. Different types of acrylate monomers and short-chain polymers were tested. The effect of the pre-polymeric mixture on the quality of 3D-printed green parts was studied. The ceramic parts were printed using an industrial DLP printer. The optimal composition of suspensions was chosen based on a series of rheological, photorheological and microstructural measurements. After printing, systems providing defect-free ceramic bodies were used to study binder removal in the nitrogen atmosphere. The binder removal was studied using high-temperature thermogravimetric analysis (TGA/DTA). The optimal heat-treatment protocol was suggested based on the results obtained from TGA/DTA analysis. The green parts in the form of the cylindrical sample with a height of 10 mm and diameters of 1 mm, 2 mm, 3 mm, 4 mm and 6 mm were printed to test the maximal heating rates possible to obtain defect-free ceramic parts after the binder removal. The results suggest that the binder removal in the nitrogen atmosphere could provide defect-free bodies in a shorter time than binder removal in an oxygen-containing atmosphere.