Imperial College London
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ProfessorPeterLee

Faculty of Engineering, Department of Materials

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 6801p.d.lee

 
 
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Location

 

102Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Østergaard:2020:10.1016/j.actamat.2020.02.060,
author = {Østergaard, MB and Zhang, M and Shen, X and Petersen, RR and König, J and Lee, PD and Yue, Y and Cai, B},
doi = {10.1016/j.actamat.2020.02.060},
journal = {Acta Materialia},
pages = {85--92},
title = {High-speed synchrotron X-ray imaging of glass foaming and thermal conductivity simulation},
url = {http://dx.doi.org/10.1016/j.actamat.2020.02.060},
volume = {189},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Glass foams are attractive thermal insulation materials, thus, the thermal conductivity (λ) is crucial for their insulating performance. Understanding the foaming process is critical for process optimization. Here, we applied high-speed synchrotron X-ray tomography to investigate the change in pore structure during the foaming process, quantifying the foam structures and porosity dynamically. The results can provide guidance for the manufacturing of glass foams. The 3D pore structures were also used to computationally determine λ of glass foams using image-based modelling. We then used the simulated λ to develop a new analytical model to predict the porosity dependence of λ. The λ values of the glass foams when the porosity is within 40% to 95% predicted by the new model are in excellent agreement with the experimental data collected from the literature, with an average error of only 0.7%, which performs better than previously proposed models.
AU  - Østergaard,MB
AU  - Zhang,M
AU  - Shen,X
AU  - Petersen,RR
AU  - König,J
AU  - Lee,PD
AU  - Yue,Y
AU  - Cai,B
DO  - 10.1016/j.actamat.2020.02.060
EP  - 92
PY  - 2020///
SN  - 1359-6454
SP  - 85
TI  - High-speed synchrotron X-ray imaging of glass foaming and thermal conductivity simulation
T2  - Acta Materialia
UR  - http://dx.doi.org/10.1016/j.actamat.2020.02.060
UR  - https://www.sciencedirect.com/science/article/pii/S1359645420301737?via%3Dihub
UR  - http://hdl.handle.net/10044/1/78904
VL  - 189
ER  -
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