DFG CRC/Transregio 39 PT-PIESA
SP C03
DFG CRC/Transregio 39 PT-PIESA 

Design of poling technology for series production for manufacturing of adaptive components of structures

P. Neumeister, A. Schönecker
  1. Aims
  2. Research Programm
  3. Methods
  4. Publications
  5. Contact

Aims

Development and validation of process instructions for process integrated poling in series production as well as methods for poling of unstructured compound materials based on experiments characterising the material and simulations of the poling process.

 

  • Investigation of the poling behaviour under the influence of T, E, ϭ and t and resulting properties (d33, ε, kp) at operation temperature
  • Space- and time related simulation of large signal behaviour of piezoceramic components in functional structures and composite materials
  • Technologies for poling of unstructured composite materials
  • Verified design recommendations and poling technologies
  • Efficient new method for characterisation of the poling state

Research Programm

 

Material characterisation

 

  • Large/small signal properties under thermoelectromechanical load
  • Properties at operation temperature in dependence to the load history

Simulation of the large signal behaviour of integrated ceramic components

 

  • Large signal answer of the piezoceramic during manufacturing and poling
  • Estimation of parameters for the poling process of composite materials

         

Poling of unstructured composites

 

  • Choice and evaluation of suitable poling methods
  • Poling experiments on piezoceramic-polymer-composites

Recommendations for design, manufacturing and poling processes

 

  • Process analysis regarding choice of material, design, poling
  • Experimental validation of the recommendations in the process chains

Characterising of the achieved poling state
  • Construction of a test setup for repolarisation
  • Development and verification of the repolarisation method

 

Methods

Development of a measurement method

 

  • Thermoelectromecanical large signal testing
  • Repolarisation method
  • Automatisation of experiments
Application of biaxial load

Materialcharakterisierung

 

  • Thermoelectromecanical poling behaviour
  • Large signal properties at operation temperature
  • Poling state
 
 
 
 
 
 
 
                    
 
Repolarisation hysteresis

Large signal simulation

 

  • Interdependency of piezo element – structure during integration and poling
  • Poling of composites
 
 
 
 
 
 
 
 
 
 
Remanent polarisation in a fibre composite

Development of poling methods

 

  • Choice of physical principle
  • Experimental verification
 
 
 
 
Unstructured pearl composite

Process evaluation

 

  • Development and validation of design and poling recommendations

for composite materials and functional structures of process chains

Process analysis to identify suitable process windows

Publications

Reviewed Publications

Other Publications

Patents


Contact:

Project Managers:

Dr. Peter Neumeister
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Winterbergstr. 28
01277 Dresden

Phone: +49 351 2553-7372
Telefax: +49 351 2554-310
E-Mail:

Dr. rer. nat. Andreas Schönecker
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Winterbergstr. 28
01277 Dresden

Phone: +49 351 2553-7508
Telefax: +49 351 2554-310

E-Mail:

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