& Custom Materials
compositions and processing technologies
for specialist actuator requirements.
Most applications are
serviced adequately by standard commercial material types. Indeed, wherever
possible, our actuator development projects use off the shelf materials.
There are situations where
performance requirements demand the development of either a modified composition
or processing route. Ecertec is ideally positioned to solve material development
challenges with access to the very latest ceramic processing and characterisation
equipment, and an experienced team of renowned development scientists.
Ecertec Defect Free Ceramics
Piezo Material Highlights
- Lead Zirconate Titanate.
variants: 'hard' and 'soft
Types & Research Materials
> 99.8% theoretical density
High dielectric strength
High mechanical strength
Lead Lanthanum Zirconate Titanate
using Ecertec's unique process avoiding the need for highly expensive hot
dense electro-optic material
PFN PMW PNN & Composites
Continuing the world leading
developments in electroceramic materials that made Leeds synonymous with Electroceramics
produce a charge proportional to an applied stress, as first discovered in
1880 by Jacques and Pierre Curie, and are natural sensor and electrical generator
materials. The converse piezoelectric effect, as utilised in actuator applications,
describes the deformation of the material in response to an applied electric
Research into what we
now loosely term "electroceramics" (ferroelectric polycrystalline
ceramics) began during World War II with the search for improved capacitor
dielectrics.It was found that barium titanate (BaTiO3) and latterly lead zirconate
titanate, known as PZT (Pb(Zr1-xTix)O3), possessed much improved dielectric
and piezoelectric properties compared to quartz. These materials can be electrically
powered by low cost, low power amplifiers and hence cost effective actuators
and sensors became a reality.
Today there are a myriad
piezoelectric compositions and material variants facing the application engineer.
By alteration to the key electromechanical properties, materials can be easily
tailored to an application to operate at a desired voltage, frequency or stress
You can find out more
details of piezo operation and principles in out ULTRAX
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