Debitus grisailles for stained-glass conservation: an analytical study

Authors

  • Carla Machado Departament of Conservation and Restoration, Faculty of Science and Technology, NOVA University of Lisbon, Portugal; Research Unit VICARTE – Glass and Ceramics for the Arts, Faculty of Science and Technology, NOVA University of Lisbon, Portugal https://orcid.org/0000-0001-8843-1101
  • Andreia Machado Departament of Conservation and Restoration, Faculty of Science and Technology, NOVA University of Lisbon, Portugal; Research Unit VICARTE – Glass and Ceramics for the Arts, Faculty of Science and Technology, NOVA University of Lisbon, Portugal https://orcid.org/0000-0002-8190-8728
  • Teresa Palomar Institute of Ceramic and Glass, Spanish National Research Council (ICV-CSIC), Madrid, Spain https://orcid.org/0000-0002-3762-8788
  • Luís Cerqueira Alves C2TN, IST/CTN, University of Lisbon, Portugal https://orcid.org/0000-0001-5369-5019
  • Márcia Vilarigues Department of Conservation and Restoration, Faculty of Science and Technology, NOVA University of Lisbon, Portugal; Research Unit VICARTE – Glass and Ceramics for the Arts, Faculty of Science and Technology, NOVA University of Lisbon, Portugal https://orcid.org/0000-0003-4134-2819

DOI:

https://doi.org/10.14568/cp2018067

Keywords:

Glass painting, Stained-glass windows, Grisailles, Debitus, Conservation, Analytical study

Abstract

Grisaille is one of the oldest and most widely used vitreous paint applied for the production of stained-glass panels and Debitus is one of the most renowned commercial brands whose grisailles are frequently used for the chromatic reintegration in stained-glass window restoration. This article presents the morphological, chemical and thermal analyses of five grisailles from Debitus, to evaluate their properties before and after firing with the objective of knowing their future stability. The characterisation was carried out by optical microscopy, scanning electron microscopy, particle induced X-ray emission, X-ray diffraction, and infrared thermography. This study showed a well-balanced ratio between the different components and a good interdiffusion into the glass, as well as a consistent thermal behaviour between them and with the glass, which indicates the good stability and durability of these materials.

 

Received: 2018-12-9
Revised: 2019-4-5
Accepted: 2019-4-29
Online: 2019-5-17
Publication: 2020-7-31

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References

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Published

2020-07-31

How to Cite

Machado, C., Machado, A., Palomar, T., Cerqueira Alves, L., & Vilarigues, M. (2020). Debitus grisailles for stained-glass conservation: an analytical study. Conservar Património, 34, 65–72. https://doi.org/10.14568/cp2018067

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