The dehydration, transformation, and densification of boehmite (γ‐AlOOH) are enhanced by addition of γ‐Al2O3 seed particles. α‐Al2O3 microstructures with uniform 1‐ to 2‐μm grain size and sintered densities 98% of theoretical are achieved at 1300°C Thermal analysis shows that γ‐Al2O3 seed particles transform to α‐Al2O3 before the matrix, thus controllably nucleating the transformation of θ‐AI2O3 to α‐Al2O3.
|Original language||English (US)|
|Journal||Journal of the American Ceramic Society|
|State||Published - Jan 1 1986|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry