The role of laboratory X-ray diffraction techniques in the provenance analysis of historical paintings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461446%3A_____%2F19%3AN0000011" target="_blank" >RIV/60461446:_____/19:N0000011 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The role of laboratory X-ray diffraction techniques in the provenance analysis of historical paintings

Popis výsledku v původním jazyce

Application of X-ray diffraction based techniques in the analysis of artworks is beneficial for indisputable identification of crystalline phases in very tiny samples that could be only taken from precious artworks. It could, additionally, bring information about geological origin, manufacturing and/or secondary changes. Diffraction patterns were collected with PANalytical X´PertPRO diffractometer equipped with a conventional X-ray tube and an X´Celerator detector with anti-scatter shield. It was studied clay statuette from the end of the 16th century. For the first time it was proven that the calcareous clay was also a material from which the Italian workshops were preparing priming layers (grounds) on canvas painting at this period. This study included also micro-samples containing white grounds collected from workds of art attributed to Master Paul from Levoča. Based on the presence of significant amounts of alunite, the kaolin was classified as hydrothermal. It is the first ever evidence of natural alunite and hydrothermal kaolinite as a white pigment in historical painted artworks.

Název v anglickém jazyce

The role of laboratory X-ray diffraction techniques in the provenance analysis of historical paintings

Popis výsledku anglicky

Application of X-ray diffraction based techniques in the analysis of artworks is beneficial for indisputable identification of crystalline phases in very tiny samples that could be only taken from precious artworks. It could, additionally, bring information about geological origin, manufacturing and/or secondary changes. Diffraction patterns were collected with PANalytical X´PertPRO diffractometer equipped with a conventional X-ray tube and an X´Celerator detector with anti-scatter shield. It was studied clay statuette from the end of the 16th century. For the first time it was proven that the calcareous clay was also a material from which the Italian workshops were preparing priming layers (grounds) on canvas painting at this period. This study included also micro-samples containing white grounds collected from workds of art attributed to Master Paul from Levoča. Based on the presence of significant amounts of alunite, the kaolin was classified as hydrothermal. It is the first ever evidence of natural alunite and hydrothermal kaolinite as a white pigment in historical painted artworks.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů