Ceramic Diaphragms
Our ceramic diaphragms made of yttrium-stabilised zirconium dioxide (ZrO₂) are used in high-quality pH sensors to reliably separate the reference and measuring media from each other. The combination of precisely adjustable porosity, defined wetting behaviour and excellent chemical resistance to acids and bases makes this material an ideal buffer and separating medium.
Your advantages - Diaphragms made of Y-FSZ
- Scalable porosity from 20 to 40%
- Acid-base resistance from pH 0 to 14
- Adjustable pore size distribution from 180 to 800 nm
- Geometries with diameters from 0.6 to 1.8 mm possible
- Surface and wetting angle can be adjusted to customer specifications
Our experts are always available to provide you with further advice.
Ceramic diaphragms made of yttrium-stabilised zirconium dioxide
The diaphragms are characterised by a homogeneous, adjustable pore size distribution of 180 to 800 nm, a porosity of approx. 20–40 % and precisely manufactured geometries with diameters between 0.60 mm and 4.80 mm. Lengths of 25 to 100 mm are currently available.
The use of the inert ceramic material ZrO₂ allows the potential differences between the media that arise during the measurement process to be recorded with particular precision, stability and reproducibility. The diaphragms can be used across the entire pH range from 0 to 14 and guarantee consistently high measurement accuracy even under long-term stress.
Thanks to state-of-the-art manufacturing technologies and its own grinding processes, Rauschert can implement customer-specific specifications regarding porosity, pore volume and pore size distribution precisely and reproducibly. This allows ceramic diaphragms to be adapted exactly to the requirements of a wide variety of sensor applications – for maximum measurement stability and reliability.