|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Preparation and Characterization of NaNO3/BFS Composite Phase Change Materials
||Jicheng Liu, Yuanbo Zhang, Zijian Su, Bingbing Liu, Manman Lu, Tao Jiang, Guanghui Li
|On-Site Speaker (Planned)
Blast furnace slag (BFS), one kind of typical solid wastes from the steel industry, was used as structural materials to synthesize NaNO3/BFS composite phase change materials (C-PCMs) by mixed and sintering method. NaNO3 in the composites functioned as phase change materials (PCMs) and BFS as structural skeleton to maintain a stabled external form. In this study, the prepared C-PCMs could remain in the solid state without salt leakage even if the temperature exceeded the melting temperature of the PCMs. The composition and structure of BFS and the prepared composites were characterized by XRD, FTIR and SEM, TG-DSC analysis. The results showed that NaNO3 was well incorporated in the pores of BFS and the melting temperature and latent heat of the prepared composites were 300.5oC and 65.53 J/g, respectively. The prepared C-PCMs had a good thermal storage performance and durability even after 100 thermal cycles. The energy density of the prepared C-PCMs was calculated as high as 468.03 J/g for an temperature range of 50–400°C.
||Planned: None Selected