PBA6-WL 3N RTP α alumina powder

Products characteristics

Typical Values	PBA6-WL
Crystalline Phase	100% α
Specific Surface Area (BET)	4 m2/g
PSD (granules) d50	55 µm
Moisture Content	0.15%
Bulk Density	1.20 g/cm3
Green Density (at 150 MPa)	2.51 g/cm3

 

Why Choose PBA6-WL?

• Flowable Spray-Dried Granules: PBA6-WL is supplied as a s Ready-To-Press alumina powder with a typical d50 of 55 µm (dry laser diffraction), helping support consistent handling and pressing behavior.
• Optimum Densification: The powder is designed to deliver controlled shrinkage, high reactivity, and optimum densification, helping manufacturers achieve high fired density with better dimensional consistency.
• Fine Microstructure: Features high reactivity and a fine microstructure that maintains almost no grain growth during densification up to 92% relative density.
• MgO doping (500 ppm): to ensure controlled grain growth during the final stage of sintering.

 

Processing & Sintering

PBA6-WL is engineered for predictable thermal behavior.

• Linear Shrinkage: -12.7%.
• Fired Density: 3.94 g/cm3 when sintered at 1550°C for 1 hour.
• Thermal Stability: Optimized debinding and consolidation profiles ensure structural integrity during the heating cycle

 

Final Ceramic Properties

• Vickers Hardness (HV10): 2160
• Flexural Strength: 372 MPa (Four-point test)
• Fracture Toughness (SEVNB): 4.60 MPa.m 1/2

(Measured on products fired at 1550°C for 1 hour)

For more technical details, download the leaflet