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Journal of Materials Science

, Volume 52, Issue 11, pp 6726–6740 | Cite as

Minimal contact formation between hollow glass microparticles toward low-density and thermally insulating composite materials

  • Zhen Wang
  • Tao Zhang
  • Byung Kyu Park
  • Woo Il Lee
  • David J. Hwang
Original Paper

Abstract

In this study, syntactic foams composed of maximal hollow glass microparticles (HGMPs) volume fraction with improved thermal insulation performance and reasonable mechanical strength were fabricated through a new manufacturing approach. Use of low fraction binder materials diluted in solvent enabled minimal contacts among the HGMPs assisted by a natural capillary trend, as confirmed by in situ and ex situ optical and electron microscope imaging. Composite level samples of practical thickness, fabricated by a layer-by-layer coating approach, exhibited enhanced thermal insulation performance, as characterized by infrared thermal imaging and quantitative thermal conductivity measurement. Via microscope inspection under tensile loading, a favorable particles–binder bonding trend was inspected in terms of mechanical strength. The fabricated composite materials have potential for building insulation applications because of their relatively simple and scalable manufacturing nature, minimal use of binder materials, and mechanical strength to maintain and tailor shape. Further studies are necessary to understand mechanical and thermal properties of the composites, and key fabrication mechanisms involved with self-assembly under complex multi-components and phases.

Keywords

Composite Coating Binder Material Syntactic Foam Heat Flux Sensor Spin Speed 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This research was supported by a Grant (code# 14CTAP-C086566-01-000000) from Technology Advancement Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. The electron microscope analysis was performed at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringState University of New YorkStony BrookUSA
  2. 2.Instittute of Advanced Machinery and DesignSeoul National UniversitySeoulKorea
  3. 3.School of Mechanical and Aerospace EngineeringSeoul National UniversitySeoulKorea

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