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Updated: Sep 15, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
Published on: November 7, 2016
Intelligent Thermoelectric Sensing with Sustainable Strain-Hardening Geopolymeric Composites
Jingming Cai1, Yujin Yuan1, Lin Pan2
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education Southeast University Nanjing 211102 China.
None:
Traditional thermoelectric (TE) building materials are limited in both performance and durability, requiring enhancements for effective energy solutions. This research investigates strain-hardening geopolymeric composites (SHGC) for TE sensing applications. The influence of metal oxides on mechanical strength and TE characteristics is evaluated using isothermal calorimetry, computed tomography scanning, and focused ion beam (FIB)-transmission electron microscopy analysis. At ambient temperature, SHGC samples with MnO2 exhibit the highest Seebeck coefficient of 5470 μV K-1 with a measured power density of 29 μW m-2. Despite the presence of small strain cracks, the SHGC maintains about 69% of its original ZT value even after long-term use. This discovery underlines the durability and efficiency of SHGC, demonstrating their potential for future infrastructure applications. The cost-effectiveness, temperature-sensing abilities, and environmental advantages of SHGC make them well suited for large-scale smart applications.
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