Evaluation of the diffusion coefficient and sorption isotherm of the different layers of early Netherlandish wooden panel paintings

Backer, Lien De; Laverge, Jelle; Janssens, Arnold; Paepe, Michel De

doi:10.1007/s00226-017-0949-y

Cited by 6 publications

(9 citation statements)

References 25 publications

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“…Mechanical properties can be found in [1][2][3][4][5]. Hygric properties are investigated in [3,4,[6][7][8][9][10][11]. Simulation approaches are presented and used in [1,3,4,8,9,12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Hygric properties are investigated in [3,4,[6][7][8][9][10][11]. Simulation approaches are presented and used in [1,3,4,8,9,12,13]. In [1,2], the focus is on dimensional changes of coated wood causing stresses by differences in hygroexpansion and stiffness between wood and coating and, therefore, only mechanical and swelling/shrinking properties are investigated for glue, gesso, oil paints, canvas and wood.…”

Section: Introductionmentioning

confidence: 99%

“…Since the structural behaviour of panel paintings and the potential for damage of applied coatings are strongly dependent on the moisture barrier formed by the coatings, the permeability has to be characterised too. Literature is available for the permeability of coatings in different application areas such as food technology [7], building materials [10], violin varnishes [8], canvas paintings [11] and panel paintings [4,6,9]. The focus of [4] is again on ageing.…”

Section: Introductionmentioning

confidence: 99%

“…The focus of [4] is again on ageing. In [6,9], the permeability of ground layers, paint layers and varnishes is investigated by cup tests driven for composites of wood with partial or full stratigraphy. In the contribution at hand, the permeability of the coatings is examined by the cup method using highly permeable polyethylene (PE) frits as support material.…”

Section: Introductionmentioning

confidence: 99%

“…In this manner, the coatings are tested individually in order to be able to predict the permeability of different coating systems. Since the combination of permeability values obtained by single tests might not be reliable, which is also discussed in [9], tests of total and partial coating systems are carried out on PE frits.…”

Section: Introductionmentioning

confidence: 99%

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Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

et al. 2022

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Many pieces of fine art are made of wood that has been treated with coatings. Since wood is a very hygroscopic material, the moisture content strongly influences the deformation of wooden parts. Coatings often act as moisture barriers. Therefore, the moisture permeability of coatings must be considered for the evaluation of the structural behaviour. The mechanical properties are also relevant to evaluate the deformation of thin artwork like panel paintings as well as the damage of paintings and varnishes. Therefore, the mechanical properties and the permeability of selected coatings used for cultural wooden artwork are investigated and presented in the article at hand. In this study, coatings of three artworks are investigated: a Lusatian cupboard from the eighteenth century, an altarpiece by L. Cranach the Elder and a Russian icon from 1912. The coatings considered are white ground, colours, varnishes, glue and textile reinforced sizing. Mechanical tests are conducted to evaluate the stiffness and tensile strength of the Russian icon’s coating. Cup tests are made to identify the moisture permeability of the coatings. This test was conducted for single coatings as well as for coating systems consisting of different coatings to investigate both the moisture barrier of single coatings and the interaction of coatings. Exponential functions for the relative humidity-dependent permeability are fitted based on the experimental data. The results allow the quantification of permeability for all investigated coatings—from white ground with a high permeability to beeswax with a low permeability—and the magnitude of moisture dependency of the coating’s permeability. Furthermore, it is shown that the simple addition of the water vapour resistance of single coatings underrates the resistance of a total coating system. By the mechanical tests, the strength, ultimate strain and Young’s modulus are obtained. The permeability and the mechanical parameters are required as input for numerical simulations of the structural behaviour of coated wooden artwork. These results are a good step forward to assess the risk of damage of coated wooden artwork.

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“…Mechanical properties can be found in [1][2][3][4][5]. Hygric properties are investigated in [3,4,[6][7][8][9][10][11]. Simulation approaches are presented and used in [1,3,4,8,9,12,13].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

et al. 2022

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Critical Exposure Time for Panel Paintings due to Change in Environmental Conditions

Foti,

Califano,

Gao

et al. 2024

Mechanics of Materials

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Climate induced deformation of Panel Paintings: experimental observations on interaction between paint layers and thin wooden supports

Allegretti¹,

Bontadi²,

Dionisi-Vici³

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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This work describes the experimental evidence of the deformation induced on a XVI century panel painting by climate uncontrolled fluctuations and on structural replicas under controlled laboratory conditions. The objects under measurement have a very thin wooden support (6 mm), caused by thinning and cradling of the original artefact during a restoration made at the beginning of the XX century. This kind of artefacts are very susceptible to suffer mechanical damage. The data of experiments carried out on the panel and in laboratory conditions show a characteristic behavior, similar to bimetallic strip warp and an interaction between hygroscopic asymmetry and mechanical asymmetry, inducing a peculiar stress dynamic in the interface wood-paint layer during climate fluctuations. In collaboration with the conservators involved in the restoration process, the effect of buffer hygroscopic systems on the warping has been studied.

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Evaluation of the diffusion coefficient and sorption isotherm of the different layers of early Netherlandish wooden panel paintings

Cited by 6 publications

References 25 publications

Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

Critical Exposure Time for Panel Paintings due to Change in Environmental Conditions

Climate induced deformation of Panel Paintings: experimental observations on interaction between paint layers and thin wooden supports

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