Design and development of lead-free glass-metallic vacuum materials for the construction and thermal performance of smart fusion edge-sealed vacuum glazing
Journal article
Memon, S. and Eames, P.C. (2020). Design and development of lead-free glass-metallic vacuum materials for the construction and thermal performance of smart fusion edge-sealed vacuum glazing. Energy and Buildings. 227, pp. 110430-110430. https://doi.org/10.1016/j.enbuild.2020.110430
Authors | Memon, S. and Eames, P.C. |
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Abstract | Advancement in hermetic (vacuum-tight) edge-sealing materials has been one of the challenges since decades because of the existing cost, use of hazardous substance and complexity-to-construct issues in vacuum glazing. This paper presents novel experimental findings with designs and methods developed to construct and analyse thermal performance of the fusion edge-sealed vacuum glazing. The novel concept of fusion edge-seal consists of forming a thin glass-metallic rigid textured layer, in which the formation processes and experimental glass-metallic textured surface bonding property tests of 15 samples are microstructurally analysed using FIB-SEM and optical microscopy and succeeded the correct mixture of B2O338-Sn62 wt%. Experimental analyses of at least 60 samples conducted using different techniques and Pb-free materials, among which five vacuum glazing samples of various designs and techniques discussed in this paper. The fusion edge-sealed vacuum glazing, constructed with bonded Sn62-B2O338 wt% surface textured fused with Sn90-In10 wt% alloy at 450 °C, achieved at the hot-plate surface heat induction of 50 ± 5 °C and the cavity vacuum pressure of 8.2 · 10−4 Pa. Validated 3D FEM employed and the centre-of-sheet and total thermal transmittance values of fusion edge-sealed vacuum glazing (sample ‘A5’), area of 300 · 8300 mm with 10 mm wide fusion edge-seal, predicted to be 1.039 and 1.4038 Wm−2K−1, respectively. |
Year | 2020 |
Journal | Energy and Buildings |
Journal citation | 227, pp. 110430-110430 |
Publisher | Elsevier BV |
ISSN | 0378-7788 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.enbuild.2020.110430 |
Publication dates | |
15 Nov 2020 | |
Online | 02 Sep 2020 |
Publication process dates | |
Accepted | 27 Aug 2020 |
Deposited | 10 Sep 2020 |
Accepted author manuscript | License File Access Level Open |
https://openresearch.lsbu.ac.uk/item/8q8v4
Download files
Accepted author manuscript
Revised Manuscript-Fusion Sealed VG-Memon 2020.pdf | ||
License: CC BY-NC-ND 4.0 | ||
File access level: Open |
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