Microanalysis of clay-based pigments in paintings by XRD techniques
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F16%3A00451135" target="_blank" >RIV/61388980:_____/16:00451135 - isvavai.cz</a>
Alternative codes found
RIV/60461446:_____/16:N0000005 RIV/60461446:_____/16:N0000008
Result on the web
<a href="http://dx.doi.org/10.1016/j.microc.2015.10.032" target="_blank" >http://dx.doi.org/10.1016/j.microc.2015.10.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.microc.2015.10.032" target="_blank" >10.1016/j.microc.2015.10.032</a>
Alternative languages
Result language
angličtina
Original language name
Microanalysis of clay-based pigments in paintings by XRD techniques
Original language description
Despite considerable advantages of the method in the field of microanalysis of pigments, powder X-ray micro-diffraction has not yet been satisfactorily tested for correct and unambiguous discrimination of clay structures in colour layers of paintings and, eventually, for reliable quantitative analysis of their relative contents. To overcome this lack of knowledge, several sets of laboratory experiments with model mixtures and reference samples imitating real paint layers have been performed and general rules for proper discrimination of clay structures have been described. As an integral part of the research, clay-binder interactions were studied to avoid misleading interpretations. It was found out that various characteristic shifts of basal diffraction lines depend on the type of organic binder and the relative content of expandable layers in the clay structure. Based on these results, it was possible to differentiate pure smectites, interstratified illite/smectite structures and chlorites in paint and preparatory layers of actual paintings. The accuracy of quantitative microanalysis of clay minerals in mixtures with other minerals in Mid-European red earth pigments (typically containing kaolinite, illite, quartz, hematite, and anatase) was characterised by total bias values in the range of 3-10 wt.%. Finally, results were applied to differentiation of earth pigments of various provenances in grounds of Baroque paintings and Early Renaissance preparation layers for gilding.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-22984S" target="_blank" >GA14-22984S: Microanalysis of clay minerals in the fine art as a part of provenance studies</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Microchemical Journal
ISSN
0026-265X
e-ISSN
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Volume of the periodical
125
Issue of the periodical within the volume
MAR
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
10-20
UT code for WoS article
000369205900002
EID of the result in the Scopus database
2-s2.0-84946887915