Abstract
Digital light processing (DLP) 3D printing has emerged as a promising technique for fabricating highprecision ceramic components, including biomedical implants. However, achieving high-strength silicon nitride (Si₃N₄) spinal implants via DLP remains challenging due to slurry formulation constraints. This study optimizes the formulation of a photocurable Si₃N₄ slurry to enable DLP-based..... More

Abstract
This study investigated the effects of sintering additives and sintering methods on the densification and mechanical properties of silicon nitride (Si₃N₄)-based ceramics for Digital Light Processing (DLP) 3D printing. The formation of dense sintered bodies was evaluated using both pressureless sintering and gas pressure sintering (GPS). X-ray diffraction (XRD) analysis..... More

Abstract
Many studies have been conducted on methods to remove air pollutants. Among them, a representative commercial technology for reducing nitrogen oxides (NO_X) is selective catalytic reduction (SCR) using NH₃ as a reductant. However, the NH₃-SCR technology has problems, such as the need for additional NH₃ gas (Active-SCR), the fact that..... More

Abstract
Recently, directly emitted NOx upon start-up has been spotlighted as a significant emissions problem. BaO loaded V2O5-WO3/TiO2 Selective Catalytic Reduction (SCR) catalysts were synthesized with various contents of barium which was a representative NOx adsorbent and their NOx adsorption, desorption, and removal efficiency were shown. The phase of BaO was..... More