C12 Separator Powder Sheets (also called SPS sheets) are thin, flexible sheets comprised of specially processed, high-purity zirconium oxide (ZrO2) aluminum oxide (Al2O3), or magnesium oxide (MgO) particles. Separator Powder Sheets are an effective, low-cost solution for eliminating problems with sticking, cracking, and warping that make firing delicate green forms and sinterable components challenging.
C12 SPS Sheets are comprised of high purity ceramic particles in a proprietary binder that is engineered to burn out cleanly at low temperatures, allowing the green forms to fire without defects. A thin, highly uniform layer of inert refractory particles is deposited between the surface of the setter plate and the parts that are being fired. This inert layer of particles resists sintering, and provides an anti-friction surface that allows for shrinkage of green parts with minimal stress, sticking, and distortion.
Lighter-grade Separator Powder Sheets are ideal for firing flat ceramic plates, SOFC's, tapecast ceramics, PZT/PLZT piezoceramics, and other delicate parts that require high surface quality and low distortion. Heavier-grade Separator Powder Sheets are also available for firing medium to larger sized technical ceramics with superior results.