Baikowski supplies 3N and 4N high-purity α-alumina powders in binder-free spray-dried and Ready-to-Press forms for ceramic precision balls and reference spheres used in metrology and dimensional control. MgO-doped formulations are also available for specific densification and grain-growth requirements.
The company lists BA15 and PBA6 spray-dried grades, available in binder-free and Ready-to-Press forms. BA15-W | Baikalox® is a 4N, 100% α-alumina with a typical specific surface area of 17 m²/g. A binder-containing version, BA15-WL, is available for Ready-to-Press use.
PBA6-WL | Baikalox® is a 3N Ready-to-Press α-alumina with a BET specific surface area of 4 m²/g. PBA6-W is the binder-free spray-dried option. PBA6-WL contains 500 ppm MgO.
The company states that powder selection should address green-density uniformity, densification and microstructure control. It cites Lu and Lannutti, who found that initial density gradients in spray-dried alumina compacts adversely affected dimensional tolerances after sintering.
Baikowski supports powder selection and formulation for uniaxial pressing, cold isostatic pressing, ceramic injection molding and suspension-based forming. ZTA solutions are offered for alumina–zirconia composites.
Source: Baikowski news
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