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

What if a 3N RTP alumina powder could deliver 4N-like performance  consistently?

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

Why Choose PBA6-WL?

 

Frequently Asked Questions

What does the PBA6-WL sintering map indicate for microstructure control?

The sintering map shows that almost no grain growth is observed during densification up to 92% relative density. Controlled grain growth is then maintained through the final sintering stage, supported by MgO doping at 500 ppm. These data provide a basis to assess whether densification progresses while the alumina microstructure remains under control across the sintering window.

What role does MgO play in PBA6-WL?

At 500 ppm, MgO acts as a sintering aid that supports controlled grain growth during the final stage of sintering. Combined with the powder’s 100% α crystalline phase, BET surface area of 4 m²/g and controlled particle size distribution, MgO doping is a key parameter in the densification and microstructure 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. BMA15, for example, is available for dip coating and slip casting routes. CRA6 may be considered when a 4N milled α-alumina powder with controlled particle size distribution and surface area is required.

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.