Inorganic particle size distribution by x-ray sedimentation
0.1 to 300 µm particle diameter
Large (50 mL dispersed) volume for representative sampling of heterogeneous materials
Complete particle accounting – including particles outside the direct measurement range
Available automation: measure up to 18 samples unattended
Conforms to ISO 13317-3, ASTM B761 and Committee C28 on Advanced Ceramics
The Micromeritics SediGraph continues to be utilized for particle size analysis in many laboratories throughout the world. Whether in a rugged production environment or a controlled laboratory setting, the SediGraph continues to produce accurate results with superior reliability.
Particle size distribution is measured using the sedimentation method. Particle mass is measured directly via X-ray absorption.
By measuring the rate at which particles fall under gravity through a liquid having known properties as described by Stokes’ law, the SediGraph determines the equivalent spherical diameter of particles ranging from 0.1 to 300 µm.
The new generation SediGraph III Plus combines this proven technique with new technology to deliver reproducible and highly accurate particle size information, completing most analyses in minutes.
The size range of particles and the distribution of mass in each size class strongly affect the ability to sinter a ceramic powder and its forming properties as well as the pore size distribution in the finished product. Particle size distribution information helps to determine curing and bonding procedures