Gas pycnometry and BET surface area each report a single number. X-ray micro-CT builds a three-dimensional map of the pore network, showing connectivity, tortuosity, and closed porosity that single-value tests cannot resolve, within real resolution and sample-size limits.
Geldart classification, minimum fluidization velocity, bubble dynamics, droplet-to-particle size ratio, and permeability all determine whether a fluidized bed process delivers controlled granule growth, uniform coating, or consistent drying at production scale.
Powder instability after conveying, filling, or transfer [...]
Fine powder fluidization can support controlled pneumatic conveying, [...]
A powder operating window defines the process [...]
Fines in powder behavior matter because fine particles [...]
Powder flowability is not one fixed property. A [...]
Permeability collapse in hopper discharge often triggers instability [...]
Powder permeability dosing instability often starts with trapped [...]
Mastering porosity in powders is essential for controlling [...]
