Tu-PHS-10 - High Temperature Investigation of Polymer-Free Strain Gauges for Integration in DED-LB Components

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Poster

Chapter

Physical Sensors

Author(s)

E. Müller, J. Eisfelder, R. Ottermann, F. Dencker, D. Klaas, M. C. Wurz - Leibniz University Hannover,Garbsen (Germany)

Pages

584 - 585

DOI

10.5162/eurosensors2026/Tu-PHS-10

ISBN

978-3-910600-12-6

Price

free

Abstract

Strain gauges integrated into additively manufactured metal components allow precise internal strain measurement for lifetime prediction. To withstand process temperatures up to 1,200 °C, thin-film sensors were fabricated on stainless steel substrates. After annealing, insulation maintained sufficient dielectric strength. The k-factor of the sensor doubled to 2.3, while resistance dropped by 50% and TCR remained constant up to 800 °C. The diffusion barriers prevented diffusion up to at least 800 °C. These results confirm the suitability of thin-film strain gauges for sensor integration in DED-LB components.