alpha-GeO2 a new material for passive SAW sensors that can be used at very high temperatures – OVERHEAT
The OVERHEAT project integrates four partners with complementary expertise and it aims to study, design and evaluate a temperature sensor based on miniaturized wireless elastic-waves piezoelectric system (SAW), operating without battery, and exploitable in a range of very high temperatures (600 – 1000°C) and in harsh environments. This sensor will be based on the single-crystal alpha-GeO2, chemically and structurally stable up to 1000°C. Under these extreme conditions, the stability of the dielectric and piezoelectric properties, as well as the viscoelastic losses of the material will be explored. A modelling of the transducer will allow the electrodes to be designed and the orientation of the blades from the single-crystals synthesized by flux to be defined. Based on the modelling of the antenna and its interconnection with the transducer, a wireless passive sensor will be carried out and its performance will be evaluated at high temperatures.
Project coordination
Philippe Papet (Institut de chimie moléculaire et des matériaux - Institut Charles Gerhardt Montpellier)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
Partnership
NEEL Institut Néel
FEMTO-ST INSTITUT FRANCHE-COMTE ELECTRONIQUE MECANIQUE THERMIQUE ET OPTIQUE - SCIENCES ET TECHNOLOGIES
ICGM Institut de chimie moléculaire et des matériaux - Institut Charles Gerhardt Montpellier
IES Institut d'Electronique et des Systèmes
Help of the ANR 510,044 euros
Beginning and duration of the scientific project:
- 48 Months
