From Pottery to Membranes: Characterization of Ceramic Powders and Surfaces

Defined properties and high quality of ceramic products rely on precise and accurate characterization of raw ceramic powders, slips and final ceramic products regarding key parameters including particle size, particle size distribution and zeta potential. The PSA and the Litesizer series enable reliable, fast and easy particle size measurements in a broad range. The zeta potential of ceramic powders and bulk bodies is determined most accurately with Litesizer 500 and SurPASS 3, respectively.

Introduction

Ceramics are inorganic non-metallic compounds, which have been shaped and then hardened by heat treatment. The term covers a large group of materials with a wide variety of chemical compositions and applications. Based on their chemical composition ceramics can be categorized as oxide ceramics like alumina and non-oxide ceramics such as nitrides, borides or carbides. Ceramics are also classified as traditional and advanced or high-performance ceramics. Advanced ceramics are distinguished from traditional ones by their outstanding properties not only in the mechanical field (e.g. strength, operating temperature, toughness, workability etc.), but also by special properties such as piezoelectricity or conductivity. Advanced ceramics are also characterized by the hardening process, which often requires extremely high temperatures[1].

References

  1. Rahaman, MN. Ceramic processing and sintering 2nd Edition. Marcel Dekker, New York, 2003. ISBN 0- 8247-0988-8.

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