Publication detail

Spectroscopy of Low Pressure Discharges Used for Plasmachemical Treatment of Archaeological Artifacts

RAŠKOVÁ, Z., KRČMA, F., KLÍMA, M., KOUSAL, J.

Original Title

Spectroscopy of Low Pressure Discharges Used for Plasmachemical Treatment of Archaeological Artifacts

English Title

Spectroscopy of Low Pressure Discharges Used for Plasmachemical Treatment of Archaeological Artifacts

Type

journal article - other

Language

en

Original Abstract

Plasmachemical treatment of the archaeological artifacts is a relatively new technique developed during the 1980s. The process is based on using low-pressure hydrogen plasma in which the artifacts (such as in this case silver coins and some pieces of iron) are treated for several hours, usually in more then one step. The problem is how long period of the plasmatic treatment is optimal and how to characterize its efficiency. The ancient artifacts always contain some corrosion layers on their surface. The studies focused on the composition of the layers show that various oxide and chloride complexes, usually containing crystalline water too, are the dominant compounds of the layer. Bulk corrosion contains especially chlorides and sulphides while surface corrosion is caused by oxygen and water.

English abstract

Plasmachemical treatment of the archaeological artifacts is a relatively new technique developed during the 1980s. The process is based on using low-pressure hydrogen plasma in which the artifacts (such as in this case silver coins and some pieces of iron) are treated for several hours, usually in more then one step. The problem is how long period of the plasmatic treatment is optimal and how to characterize its efficiency. The ancient artifacts always contain some corrosion layers on their surface. The studies focused on the composition of the layers show that various oxide and chloride complexes, usually containing crystalline water too, are the dominant compounds of the layer. Bulk corrosion contains especially chlorides and sulphides while surface corrosion is caused by oxygen and water.

Keywords

plasma conservation, archaeological artifact, optical spectroscopy

RIV year

2002

Released

10.09.2002

Publisher

AV ČR

Pages from

S101

Pages count

3

BibTex


@article{BUT41213,
  author="Zuzana {Rašková} and František {Krčma} and Miloš {Klíma} and Jaroslav {Kousal}",
  title="Spectroscopy of Low Pressure Discharges Used for Plasmachemical Treatment of Archaeological Artifacts",
  annote="Plasmachemical treatment of the archaeological artifacts is a relatively new technique developed during the 1980s.  The process is based on using low-pressure hydrogen plasma in which the artifacts (such as in this case silver coins and some pieces of iron) are treated for several hours, usually in more then one step. The problem is how long period of the plasmatic treatment is optimal and how to characterize its efficiency. The ancient artifacts always contain some corrosion layers on their surface. The studies focused on the composition of the layers show that various oxide and chloride complexes, usually containing crystalline water too, are the dominant compounds of the layer. Bulk corrosion contains especially chlorides and sulphides while surface corrosion is caused by oxygen and water.   
",
  address="AV ČR",
  chapter="41213",
  edition="neuvedena",
  institution="AV ČR",
  journal="Chemické listy",
  number="S",
  volume="96",
  year="2002",
  month="september",
  pages="S101",
  publisher="AV ČR",
  type="journal article - other"
}