Abstract
Recently to improve properties, highly microstructure controlled ceramics such as fine-grained, textured and laminated structures are required. We have demonstrated a new processing of textured ceramics with a feeble magnetic susceptibility by colloidal processing in a high-magnetic field and subsequent heating. As colloidal processing, slip casting and electrophoretic deposition (EPD) have been conducted successfully. Colloidal processing is known to be a powerful method for consolidating fine particles with a high density and homogeneous microstructure. Crystalline-textured controlled laminated alumina can be fabricated using EPD by varying the angle between the vectors of electric field and magnetic field. Also textured ceramics with complicated structure such as β-alumina and alumina-based nanocomposite can be fabricated by reaction sintering. The textured alumina-related compounds showed anisotropic properties depending on the crystal plane. The colloidal processing in a high-magnetic field confers several advantages and can be applied to many non-cubic ceramics.
| Original language | English |
|---|---|
| Pages (from-to) | 935-942 |
| Number of pages | 8 |
| Journal | Journal of the European Ceramic Society |
| Volume | 28 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
Keywords
- Alumina
- EPD
- Magnetic field
- Slip casting
- Textured ceramics
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry