Ceramic materials

Ceramic materials

The properties of ceramic components are decisively dependent on the quality of the starting powders: in addition to the particle size distribution and shape, the important parameters are the BET surface area and density.Further the type and performance of the molding process is essential: e.g. in the case of a wet process (suspension route), the slurry properties influence the properties of the green body in addition to the real process parameters. The essential quality features here are the stability of the suspension against sedimentation and agglomeration, whereby the zeta potential plays an important role in electrostatically or sterically stabilized systems. Moreover, the rheological properties are crucial for shaping of the bodies.Optimized properties of the green body, in particular a proper distribution and size of the pores for the sintering process and, of course, the shape stability, are absolutely required for an ideal ceramic end product!

Analysis methods for Ceramic materials

ANALYSIS METHOD PARAMETER MEASURING INSTRUMENT
Laser diffraction (wet or dry) Particle size of powders Bettersizer S3 series
Bettersizer 2600
Bettersizer ST
Image analysis Particle shape BeVision D2
Bettersizer S3 Plus
DLS – dynamic light scattering (Photon correlation) Particle size in nanometer ranges BeNano series
Acoustic spectrometry Particle size in micrometer and nanometer ranges in concentrated dispersions DT-1202
DT-100
Electro acoustic Zeta potential DT-1202
DT-310
DT-300
Multiple light scattering Stability of dispersions Contract analysis
Gas adsorption BET-surface area and pore analysis 3P micro series
3P meso series
3P sync series
3P surface DX
Mercury porosimetry Pore analysis (pore volume, pore size distribution, raw density) Contract analysis
Gas pycnometriy Density 3P densi series
Tapping volumetry Tap density BeDensi T series
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