RGO-Pd Nano-composite based Films for Strain Measurement using Screen Printing Technique

Nuthalapati, Suresh and Shirhatti, Vijay and Neella, Nagarjuna and Kedambaimoole, Vaishakh and Gaddam, Venkateswarlu and Rajanna, K and Nayak, MM (2018) RGO-Pd Nano-composite based Films for Strain Measurement using Screen Printing Technique. In: Proceedings of the 13th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 22-26 April, 2018, Singapore, pp. 381-384.

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Abstract

In this paper we are reporting, a strain sensor fabricated by screen printing method using a novel Reduced Graphene Oxide (RGO) and Palladium (Pd) nano-composite on a stainless steel substrate. Pd was chosen due to its higher strain sensitivity compared to other metal composites and screen printing method was adopted because of low cost and easy fabrication. A specified amount of Pd filler was mixed with RGO to enhance its functional and mechanical properties under strain application. As-synthesized nano-composite was characterized by Field Emission-Scanning Electron Microscope (FE-SEM) and X-ray diffraction (XRD) for its surface morphology and crystallinity of the composite. The change in electrical resistance of as-fabricated strain sensor was observed when a mechanical strain was applied on it and its strain sensitivity (Gauge factor) was estimated by cantilever bending method. The Gauge factor as high as 15 was observed for as-prepared strain sensor. The presently developed high sensitive strain gauges are useful to measure force, stress/strain, pressure and displacements in the fields of aerospace, civil engineering, automobile and transport.

Item Type:	Conference Paper
Series.:	International Conference on Nano-Micro Engineered and Molecular Systems NEMS
Publisher:	IEEE
Additional Information:	13th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems (IEEE-NEMS), Singapore, SINGAPORE, APR 22-26, 2018
Keywords:	RGO; RGO-Pd nano-composite; Strain sensor
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	26 Jun 2019 15:22
Last Modified:	02 Aug 2019 04:31
URI:	http://eprints.iisc.ac.in/id/eprint/62817

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