Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares
Abstract Archaeological objects based on copper alloys (such as bronze wares) usually suffer from “bronze disease” that results from the existence of CuCl on the surfaces. The surface-coating Cu2(OH)3Cl can release Cl− and lead to further corrosion during the storage procedure. The central aim of th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-02-01
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| Series: | Heritage Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40494-022-00839-7 |
| _version_ | 1811165756758425600 |
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| author | Ranran Jiao Fuwei Sun Jiaxing Li |
| author_facet | Ranran Jiao Fuwei Sun Jiaxing Li |
| author_sort | Ranran Jiao |
| collection | DOAJ |
| description | Abstract Archaeological objects based on copper alloys (such as bronze wares) usually suffer from “bronze disease” that results from the existence of CuCl on the surfaces. The surface-coating Cu2(OH)3Cl can release Cl− and lead to further corrosion during the storage procedure. The central aim of the work is the verity the effectiveness of low-temperature radio-frequency (RF) plasma for the removal of CuCl and Cu2(OH)3Cl from the bronze wares. In this work, CuCl and Cu2(OH)3Cl patina were synthesized on copper by a simple solution method. The chemical and aesthetic features before and after plasma treatment were characterized using optical microscopy (OM), SEM-EDS, XRD, and XPS. The results show that Ar-H2 plasma could reduce the CuCl to Cu efficiently, which achieves pleasing esthetics as well as removes the chlorine (Cl atomic ratio decrease from 46.0 to 3.6%). For Cu2(OH)3Cl, the air plasma treatment exhibit better performance compared to the Ar-H2 plasma treatment, judging from the aesthetic effect and the removal effect of chlorine (Cl atomic ratio decrease from 14.8 to 3.3%). |
| first_indexed | 2024-04-10T15:41:45Z |
| format | Article |
| id | doaj.art-2805bd28eb2f4bf1bb4e4db5d779119a |
| institution | Directory Open Access Journal |
| issn | 2050-7445 |
| language | English |
| last_indexed | 2024-04-10T15:41:45Z |
| publishDate | 2023-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Heritage Science |
| spelling | doaj.art-2805bd28eb2f4bf1bb4e4db5d779119a2023-02-12T12:19:15ZengSpringerOpenHeritage Science2050-74452023-02-0111111110.1186/s40494-022-00839-7Application of low-temperature plasma for the removal of copper chloride layers on bronze WaresRanran Jiao0Fuwei Sun1Jiaxing Li2CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of SciencesCAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of SciencesCAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of SciencesAbstract Archaeological objects based on copper alloys (such as bronze wares) usually suffer from “bronze disease” that results from the existence of CuCl on the surfaces. The surface-coating Cu2(OH)3Cl can release Cl− and lead to further corrosion during the storage procedure. The central aim of the work is the verity the effectiveness of low-temperature radio-frequency (RF) plasma for the removal of CuCl and Cu2(OH)3Cl from the bronze wares. In this work, CuCl and Cu2(OH)3Cl patina were synthesized on copper by a simple solution method. The chemical and aesthetic features before and after plasma treatment were characterized using optical microscopy (OM), SEM-EDS, XRD, and XPS. The results show that Ar-H2 plasma could reduce the CuCl to Cu efficiently, which achieves pleasing esthetics as well as removes the chlorine (Cl atomic ratio decrease from 46.0 to 3.6%). For Cu2(OH)3Cl, the air plasma treatment exhibit better performance compared to the Ar-H2 plasma treatment, judging from the aesthetic effect and the removal effect of chlorine (Cl atomic ratio decrease from 14.8 to 3.3%).https://doi.org/10.1186/s40494-022-00839-7CopperChlorideLow-temperature plasmaRadio frequency |
| spellingShingle | Ranran Jiao Fuwei Sun Jiaxing Li Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares Heritage Science Copper Chloride Low-temperature plasma Radio frequency |
| title | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares |
| title_full | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares |
| title_fullStr | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares |
| title_full_unstemmed | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares |
| title_short | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares |
| title_sort | application of low temperature plasma for the removal of copper chloride layers on bronze wares |
| topic | Copper Chloride Low-temperature plasma Radio frequency |
| url | https://doi.org/10.1186/s40494-022-00839-7 |
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