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Journal of Thermal Analysis and Calorimetry

, Volume 117, Issue 3, pp 1285–1292 | Cite as

Influence of Cu powders on the properties and characteristics of nano-MgO based aluminate cementitious materials

  • Yu Shi
  • Huiwen Yuan
  • Chunhua Lu
  • Zhongzi Xu
  • Quanhai Fu
  • Yaru Ni
  • Xianghui Lan
Article

Abstract

From the perspective of practical application, the development of desirable thermal and mechanical performance of solid sensible materials for thermal energy storage (TES) is highly needed. Here, we report the improved properties of nano-MgO optimized aluminate cementitious materials incorporated with Cu powders for TES. The composite TES materials were heated at 105, 350, and 900 °C, respectively. The results show that as the Cu powders content increases the thermal conductivity and volume heat capacity significantly increase, but there is a gradual decrease in compressive strength. Through the characterizations such as calorimetric test, XRD, FESEM, TG-DSC, and MIP, a significant feature of mass compensation also has been obtained, which might result from the oxidation reaction of the Cu powder at elevated temperatures.

Keywords

Cu powders Thermal properties Nano-MgO Cementitious materials 

Notes

Acknowledgements

The authors would like to express sincere thanks to Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and the Independent Research Topics of State Key Laboratory of Materials-Oriented Chemical Engineering (ZK201211) for Financial Support.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  1. 1.State Key Laboratory of Materials-oriented Chemical Engineering, College of Materials Science and EngineeringNanjing Tech UniversityNanjingChina
  2. 2.Jiangsu Arit New Materials Co. Ltd.NanjingChina

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