Application of low temperature plasmas for restoration/conservation of archaeological objects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F14%3APU110498" target="_blank" >RIV/00216305:26310/14:PU110498 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1742-6596/565/1/012012" target="_blank" >http://iopscience.iop.org/article/10.1088/1742-6596/565/1/012012</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/565/1/012012" target="_blank" >10.1088/1742-6596/565/1/012012</a>

Result language
angličtina
Original language name
Application of low temperature plasmas for restoration/conservation of archaeological objects
Original language description
The low temperature low-pressure hydrogen based plasmas were used to study the influence of processes and discharge conditions on corrosion removal. The capacitive coupled RF discharge in the continuous or pulsed regime was used at operating pressure of 100-200 Pa. Plasma treatment was monitored by optical emission spectroscopy. To be able to study influence of various process parameters, the model corroded samples with and without sandy incrustation were prepared. The SEM-EDX analyzes were carried out to verify corrosion removal efficiency. Experimental conditions were optimized for the selected most frequent materials of original metallic archaeological objects (iron, bronze, copper, and brass). A special focus was kept for the samples temperature because it was necessary to avoid any metallographic changes in the material structure. The low pressure hydrogen plasma is not applicable for objects with a very broken structure or for non-metallic objects due to the non-uniform heat stress. Due to this fact, the new developed plasmas generated in liquids were applied on selected glass materials. The original archaeological objects were used in this case because it was very complicated to prepare a uniform artificial corrosion layer at laboratory conditions.
Czech name
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Czech description
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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
20506 - Coating and films

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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