Translucent alumina ceramics was fabricated by a novel and simple gelling system using a water-soluble co-polymer of isobutylene and maleic anhydride (Isobam), acting as dispersant and gelling agent. Alumina slurry was prepared by mixing alumina powder, deionized water and 0.5wt% Isobam. Both rheological properties and gelling behaviors of the slurry were evaluated. Without an initiator or any other additives, gelation of the slurry occurred at room temperature in air atmosphere. After dried and presintered, the green body was sintered at 1850°C for 5h in vacuum furnace. In-line transmittance of the resultant alumina ceramics (1mm thick) was 29.5% at 600nm.
No takes yet. Share an insight, caveat, or question.
Shimai et al. (2013) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: