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Author |
Anaf, W.; Cabal, A.; Robbe, M.; Schalm, O. |
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Title |
Real-time wood behaviour : the use of strain gauges for preventive conservation applications |
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A1 Journal article |
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Year |
2020 |
Publication |
Sensors |
Abbreviated Journal |
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Volume |
20 |
Issue |
1 |
Pages |
305 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Cultural Heritage Sciences (ARCHES) |
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Abstract |
Within the heritage field, the application of strain gauges on wood surfaces is a little-explored but inexpensive and effective method to analyse the environmental appropriateness of rooms for the wooden heritage collections they contain. This contribution proposes a wood sensor connected to a data logger to identify short moments with an elevated risk of harm. Two experiments were performed to obtain insights pertaining to the applicability of wood sensors to evaluate preservation conditions. (1) The representativeness of strain gauges on dummies was tested for their use in evaluating the preservation conditions of a range of wooden objects exposed to the same environment. For this, three situations were mimicked: a bare wood surface, a wood surface covered with a preparation layer, and a wood surface covered with a preparation and varnish layer. (2) The usability of strain gauges to monitor the wood behaviour in real-time measurements was tested with a monitoring campaign of almost two years in a church where a new heating system was installed. The results of both experiments are promising, and the authors encourage a broader application of strain gauges in the heritage field. |
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Wos  |
000510493100305 |
Publication Date |
2020-01-06 |
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; This research was funded by the Belgian Federal Public Planning Service Science Policy (BELSPO) under project number BR/132/A6/AIRCHECQ. ; |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:166595 |
Serial |
6592 |
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Author |
Schalm, O.; Nuyts, G.; Janssens, K. |
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Title |
Some critical observations about the degradation of glass : the formation of lamellae explained |
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A1 Journal article |
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Year |
2021 |
Publication |
Journal Of Non-Crystalline Solids |
Abbreviated Journal |
J Non-Cryst Solids |
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Volume |
569 |
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Pages |
120984 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
This study demonstrates that the mechanism responsible for the transformation of glass into a degradation layer is pH-dependent. In acid conditions, the transformed glass is homogeneous and brittle. In mild alkaline conditions, transformed glass is heterogeneous due to the presence of lamellae composed of silica nanoparticles and the occurrence of Ca-rich inclusions. The fundamental difference between acid and alkaline conditions cannot be explained by the currently accepted degradation mechanism based on ion exchange. To explain this critical observation, we propose a refined degradation mechanism based on existing knowledge that involves several inwardly moving reaction fronts. The fronts responsible for the transformation of the silicate network into amorphous silica are also responsible for the morphology of the transformed glass. We have identified the feedback mechanism that explains the formation of lamellae in alkaline conditions. |
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000674487200009 |
Publication Date |
2021-06-20 |
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ISSN |
0022-3093 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.124 |
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Open Access |
OpenAccess |
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Most recent IF: 2.124 |
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Call Number |
UA @ admin @ c:irua:179835 |
Serial |
8551 |
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Author |
Adams, F.; Adriaens, A.; Aerts, A.; de Raedt, I.; Janssens, K.; Schalm, O. |
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Title |
Micro and surface analysis in archaeology |
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A1 Journal article |
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Year |
1997 |
Publication |
Journal of analytical atomic spectrometry |
Abbreviated Journal |
J Anal Atom Spectrom |
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12 |
Issue |
3 |
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257-265 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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A1997WN16300001 |
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2002-07-26 |
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0267-9477 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.379 |
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Most recent IF: 3.379; 1997 IF: 3.595 |
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Call Number |
UA @ admin @ c:irua:16274 |
Serial |
5711 |
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