Interaction of historical lead glazes with corrosive media
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F21%3A00552001" target="_blank" >RIV/67985891:_____/21:00552001 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/21:43922284 RIV/60461373:22810/21:43922284
Result on the web
<a href="https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1439" target="_blank" >https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1439</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/cs.2021.0045" target="_blank" >10.13168/cs.2021.0045</a>
Alternative languages
Result language
angličtina
Original language name
Interaction of historical lead glazes with corrosive media
Original language description
Lead glasses and glazes are often discussed in terms of degradation processes in connection with their wide use in the field of cultural heritage in historical objects of low-fired glazed ceramics and historical glasses. This work is focused on the evaluation of the interaction of lead glazes with a corrosive media simulating environment of waste pits, deposits and possibly inappropriate conservation interventions. The first part of the experiment contains surface characterisation of several archaeological fragments of glazed ceramics. Two model lead silicate fritted glazes for corrosion tests were prepared based on their compositions. A system based on nitric acid solution simulates nitrates in the soil that surround the archaeological finds, and the aqueous solution of acetic acid represents corrosion in complex organic acids and humic acids. The concentration of Pb and Si was determined in corrosive solution by AAS. Precipitates were identified by optical microscopy (OM) and were examined via XRD and SEM-EDS analyses. Vibrational spectroscopy (ATR, Raman) proved that the proportion of Pb representing a function of network former decreases with time. The shift to higher wavelengths indicates a change in Q motifs in the glass structure of the glaze frits or a glass network transition from a Si-O-Pb-O-Si towards a Si-O-Si glass network.nn
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
<a href="/en/project/DG18P02OVV028" target="_blank" >DG18P02OVV028: Technology of Treatment and Identification of Degradation Processes of Ceramic Finds from Hradčany Palaces - Methods of Restoration and Conservation of Porous and Dense Ceramics and Porcelain</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ceramics - Silikáty
ISSN
0862-5468
e-ISSN
1804-5847
Volume of the periodical
65
Issue of the periodical within the volume
4
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
10
Pages from-to
417-426
UT code for WoS article
000745121700013
EID of the result in the Scopus database
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