|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Integrative Materials Design III: Performance and Sustainability
||Thermally Reliable Materials of Clay and Organic By-products for Thermal Energy Storage
||Pierre-Marie Nigay, Ange Nzihou, Claire E White, Winston O Soboyejo
|On-Site Speaker (Planned)
In this study, the structure/property relationships of a clay ceramic incorporating organic by-products are investigated to develop thermally reliable materials for application in thermal energy storage. It was found that the temperature-sensitive minerals transformed into stable phases of calcium alumino-silicates during the firing process while the organic by-products remained in the clay matrix without interaction with the clay. The conservation of the organic by-products increased the specific heat capacity of the clay ceramic to 1.49 kJ/kg.K. The clay ceramic also had a relatively high mechanical strength of 11.1 MPa due to the formation of stable phases. Moreover, the mechanical strength only decreased by 23% after 100 thermal cycles. The decrease associated with the crack growth was limited by crack-tip shielding mechanisms (i.e., crack bridging/trapping). This combination of specific heat capacity and mechanical strength made the clay ceramic incorporating organic by-products one the most reliable materials for thermal energy storage.
||Planned: Supplemental Proceedings volume