Debinding of additively manufactured parts from spinel powders with particle sizes below 200 nm

The widespread application of additive manufacturing in ceramics is still hindered by recurrent cracking issues during debinding. To date, the various strategies that have been attempted to reduce this problem often fail upon particle size reduction. Indeed, a reduction affects diffusion rates (e.g. pore network) such even slow heating and long dwell times debinding may not prevent crack formation. In study, analysis curing behavior magnesium aluminate spinel different acrylates one methacrylate was performed. Crack formation analyzed combining thermal effects with FTIR dilatometry data. strategy exothermal through addition propylene carbonate (i.e. non-reactive diluent) evaluated.