Abstract
Blast furnace slag (BFS), one kind of typical solid waste in the steel industry, was used as structural materials to synthesize NaNO3/BFS composite phase change materials (C-PCMs) by mixing and sintering method. NaNO3 in the composites functioned as phase change materials (PCMs) and BFS as structural skeleton to maintain a stable external form. In this study, the prepared C-PCMs could remain in the solid state without salt leakage even if operating temperature exceeded the melting temperature of NaNO3. The composition and structure of BFS and the prepared composites were characterized by XRD, FTIR, SEM and TG-DSC analyses. The results showed that NaNO3 was well incorporated in the pores of BFS. The melting temperature and latent heat of the final composites were 300.5 °C and 65.53 J/g, respectively. The product also had good thermal storage performance and durability even after 100 thermal cycles. The energy density of the product was calculated as high as 468.03 J/g for an temperature range of 50–400 °C.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Brown TJ, Idoine NE, Raycraft ER, Shaw RA, Deady EA, Hobbs SF, Bide T (2017) World mineral production 2011-2015. British Geological Survey, Keyworth, Nottingham
Shen JG, Guo CY, Chen M, Yu JK, Jian MF (2006) Utilization of metallurgical slag as resource materials in China. Dev Chem Eng Miner Process 14:487–493
Escalante JI, Gómez LY, Johal KK, Mendoza G, Mancha H (2001) Reactivity of blast-furnace slag in Portland Cement blends hydrated under different conditions. Cem Concr Res 31:1403–1409
Ozturk ZB, Gultekin EE (2015) Preparation of ceramic wall tiling derived from blast furnace slag. Ceram Int 41:12020–12026
Gesoğlu M, Güneyisi E, Mahmood SF, Öz HÖ, Mermerdaş K (2012) Recycling ground granulated blast furnace slag as cold bonded artificial aggregate partially used in self-compacting concrete. J Hazard Mater 235–236:352–358
Su W, Darkwa J, Kokogiannakis G (2015) Review of solid–liquid phase change materials and their encapsulation technologies. Renew Sustain Energy Rev 48:373–391
Zhang P, Xiao X, Ma ZW (2016) A review of the composite phase change materials: fabrication, characterization, mathematical modeling and application to performance enhancement. Appl Therm Eng 165:472–510
Li R, Zhu J, Zhou W, Cheng X, Li Y (2016) Thermal properties of sodium nitrate-expanded vermiculite form-stable composite phase change materials. Mater Des 104:190–196
Li Y, Guo B, Huang G et al (2015) Characterization and thermal performance of nitrate mixture/SiC ceramic honeycomb composite phase change materials for thermal energy storage. Appl Therm Eng 81:193–197
Liu H, Lu H, Chen D, Wang H, Xu H (2009) Preparation and properties of glass–ceramics derived from blast-furnace slag by a ceramic-sintering process. Ceram Int 35:3181–3184
Acknowledgements
The authors would like to express their heartful thanks to National Natural Science Foundation of China (No. 51574283), the Natural Science Foundation of Hunan Province, China (No. 2016 JJ2143) and Fundamental Research Funds for the Central Universities of Central South University (No. 2017zzts578).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Liu, J. et al. (2018). Preparation and Characterization of NaNO3/BFS Composite Phase Change Materials. In: Li, B., et al. Characterization of Minerals, Metals, and Materials 2018 . TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72484-3_9
Download citation
DOI: https://doi.org/10.1007/978-3-319-72484-3_9
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-72483-6
Online ISBN: 978-3-319-72484-3
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)