PBA6-WL: A 3N RTP alumina powder offering 4N-like performance

 

Frequently Asked Questions

Why Choose PBA6-WL?

PBA6-WL is a high-reactivity Ready-To-Press alumina powder engineered for:
✔ Controlled shrinkage
✔ Optimum densification
✔ Fine microstructure

What role does MgO play in PBA6-WL microstructure control?

At 500 ppm, MgO acts as a microstructure-control dopant, helping to limit grain growth during densification. PBA6-WL shows almost no grain growth up to 92% relative density, supporting the development of a fine and homogeneous microstructure. Combined with the powder’s α-Al₂O₃ crystalline phase, BET surface area of 4 m²/g and controlled particle size distribution, MgO doping contributes to the microstructural behavior documented in the technical leaflet.

Can Baikalox alumina solutions be customised ?

Baikowski®’s technical team works with customers to assess compatibility with their specific constraints — target density, sintering profile, shrinkage budget, microstructure requirements and final ceramic property targets.

When standard PBA6-WL characteristics do not fully match the process window, physicochemical powder properties can be adapted. Depending on the project, customization may involve dopant level, purity profile, BET surface area, particle size distribution, flowability, sinterability or final product form.

 

Relative density vs. temperature of PBA6-WL compared to Baikowski CRA6 and BMA15 solutions

 

PBA6-WL remains the route to evaluate when the priority is a Ready-To-Press alumina powder, and is also available as a binder-free spray-dried powder for manufacturers preparing their own formulation.

These characteristics are relevant to a range of technical ceramic applications, including, for example, ceramic precision balls and components used in metrology.

Review the Full PBA6-WL Process Dataset

Download the PBA6-WL technical leaflet to access the process data needed to evaluate this 3N Ready-To-Press alumina route, including:

• particle size distribution;
• debinding and consolidation profile;
• linear shrinkage up to 1600°C;
• sintering maps;
• grain size versus relative density;
• final ceramic properties after sintering.