Debitus grisailles for stained-glass conservation: an analytical study

Carla Machado; Andreia Machado; Teresa Palomar; Luís Cerqueira Alves; Márcia Vilarigues

doi:10.14568/cp2018067

Autores

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

Palavras-chave:

Pintura sobre vidro, Vitral, Grisalha, Debitus, Conservação, Estudo analítico

Resumo

A grisalha é uma das pinturas vítreas mais antigas e mais usadas na produção de painéis de vitral, e Debitus é uma das marcas comerciais mais conhecidas. As suas grisalhas são frequentemente utilizadas para reintegração cromática em restauro de vitral. Este artigo apresenta a análise química, morfológica e térmica de cinco grisalhas da Debitus, avaliando as suas propriedades antes e depois da cozedura com o objetivo de compreender a sua futura estabilidade. A caracterização foi realizada por microscopia ótica, microscopia eletrónica de varrimento, emissão de raios X induzida por partículas, difração de raios X e termografia de infravermelho. Este estudo demonstrou uma relação equilibrada entre os diferentes componentes e uma boa interdifusão no vidro por parte destes, tal como um comportamento térmico consistente entre eles e com o vidro, o que indica uma boa estabilidade e durabilidade destes materiais.

Recebido: 2018-12-9
Revisto: 2019-4-5
Aceite: 2019-4-29
Online: 2019-5-17
Publicação: 2020-7-31

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