A review on aqueous gelcasting: A versatile and low-toxic technique to shape ceramics

Multistage kinetic analysis of DMAA/MBAM polymer removal from gelcast ceramic parts using a multi-stage parallel reaction model and model-free method

“…Then, M-AlN was added, and the planetary mill was run without ZrO 2 balls for 30 min to prevent the wear of the dense alumina lm of M-AlN owed by degassing for 30 min. (3) The gelation process of the slurry proceeded by adding 1.0 wt% initiator and catalyst. The suspensions were cast into a cylindrical mold (B 35 mm  25 mm) and then cured at room temperature until the DMAA and MBAM were fully polymerized.…”

“…Gelcasting is an emerging colloidal molding technology for near-net shaping of ceramic parts. [1][2][3] This technique ingeniously utilizes the in situ polymerization of the gel system to form a three-dimensional network to enwrap and immobilize ceramic particles, allowing them to keep the desired shape of green bodies. 4 The gelcasting processing mainly consists of four steps: preparation of ceramic slurries with low viscosity and high solids content, injection of slurries into the mold, demolding and drying, and debinding and sintering.…”

In situ coagulation of yttria‐stabilized zirconia ceramic with enhancement of green body via polyvinyl pyrrolidone crosslink

“…Zirconia ceramics with complex shape are urgently demanded in these applications . Colloidal process is an effective method for complex‐shape ceramic forming, which includes gelcasting, temperature‐induced forming, direct coagulation casting (DCC), temperature‐induced gelation, and so on …”

Viscoelastic behaviors and drying kinetics of different aqueous gelcasting systems for large Nd: YAG laser ceramics rods

“…However, although the gelcasting technology has been developed for decades and it has unique advantages in the preparation of transparent ceramics, there are still some problems that have not been completely solved up to now . The transparent ceramics prepared by gelcasting were generally small round wafer or rectangular strip (about 10‐30 mm in diameter or length) .…”

“…However, although the gelcasting technology has been developed for decades and it has unique advantages in the preparation of transparent ceramics, there are still some problems that have not been completely solved up to now. 21,24,25 The transparent ceramics prepared by gelcasting were generally small round wafer or rectangular strip (about 10-30 mm in diameter or length). [26][27][28][29] Even if some ceramics were prepared into large sizes, they were usually the round or rectangular and could not achieve large-size rods with a huge special aspect ratio (>10) or extreme dimension size.…”