Shape forming of ceramics with controllable microstructure by drying-free colloidal casting

Dehua Dong, Yi Huang, Xinyi Zhang, Li He, Chun-Zhu Li, Huanting Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A new drying-free colloidal casting method was developed for shape forming of ceramics with controllable microstructure. A polymerizable solvent such as furfuryl alcohol (FA) was employed to disperse ceramic particles to form a colloidal ceramic suspension with good fluidity. After casting, the solvent was polymerized into a polymer, resulting in solidification of the colloidal suspension. For the purpose of demonstrating this casting method, three types of ceramic powders (NiO/YSZ, Al(2)O(3) and YSZ) were used to fabricate a NiO/YSZ ceramic tube, an Al(2)O(3) ceramic part with a hexagonal screw nut shape, and a YSZ thin film. Our study shows that the microstructure (pore size and porosity) of ceramics can be readily tuned by adjusting the amount of FA, and the drying-free casting method offers better controllability over the shape forming of a wide variety of ceramic materials.

Original languageEnglish
Pages (from-to)7070-7074
Number of pages5
JournalJournal of Materials Chemistry
Volume19
Issue number38
DOIs
Publication statusPublished - 2009
Externally publishedYes

Keywords / Materials (for Non-textual outputs)

  • AQUEOUS ALUMINA SLURRIES
  • OXIDE FUEL-CELLS
  • FURFURYL ALCOHOL
  • POLYMERIZATION
  • RELIABILITY
  • FABRICATION
  • ANODE

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