EP21TDCS: Used to Secure Wire Leads to the Terminals of a Thermal-Sprayed Strain Sensor

Overview of EP21TDCS

Master Bond EP21TDCS is a two-component, silver-filled, electrically conductive epoxy adhesive designed for high performance bonding, sealing, and coating applications. Its excellent electrical conductivity and strong bonding to metals make it well-suited for attaching wire leads to steel substrates coated with a nickel alloy.

Application

Engineering systems are prone to failure due to material degradation and complex stress interactions, but conventional damage detection methods often lack integrated, real-time monitoring capabilities. To address this, researchers at the University of Alberta and the University of Toronto developed bilayer thermal-sprayed, piezoresistive nickel alloy (NiCoCrAlTaY) coatings as integrable strain sensors. This approach offers better durability and the potential to overcome the limitations of traditional strain gauges while enabling real-time monitoring of structural health. As part of this design, the authors applied EP21TDCS at the terminals of the conductive NiCoCrAlTaY layer, where wire leads were attached before curing.

To read about the key parameters, requirements, and results, please download the full case study.

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Reference

Ogunbadejo, A. S., Jarligo, M. O., Chandra, S., McDonald, A., Flame Sprayed NiCoCrAlTaY-TiO2 Coatings as Structural Health Monitoring Sensors. http://dx.doi.org/10.2139/ssrn.4715917