The evaluation of corrosion inhibitors for application to copper and copper alloy archaeological artefacts
This thesis concerns corrosion inhibiting compounds which slow the deterioration of archaeological copper artefacts. Benzotriazole (BTA) and 2-Amino- 5-mercapto-1,3,4-thiadiazole (AMT) have been applied as corrosion inhibitors in archaeological conservation. A search was conducted for similar compounds that could be applied in the conservation of copper and copper alloys. According to a list of requirements specific to archaeological conservation, six new inhibitors were tested. 2-Aminopyrimidine (AP), 5,6-Dimethylbenzimidazole (DB), 2-Mercaptobenzimidazole (MBI), 2-Mercaptobenzoxazole (MBO), 2-Mercaptobenzothiazole (MBT), 2-Mercaptopyrimidine (MP), were tested for potential archaeological conservation applications. The literature 1ists only one corrosion test for copper chloride corrosion in archaeological conservation, with intact surface corrosion products. Industrial corrosion tests were checked in American Society for Testing Materials (ASTM), British Standards Institution (BSI), Deutsche Industry Norm (DIN), International Standards Organisation (ISO). Chlorides are known to be a major factor in ongoing deterioration of copper artefacts in the museum environment. The mechanisms and types of chloride corrosion
Faltermeier, Robert
Archaeology
The evaluation of corrosion inhibitors for application to copper and copper alloy archaeological artefacts. This thesis concerns corrosion inhibiting compounds which slow the deterioration of archaeological copper artefacts. Benzotriazole (BTA) and 2-Amino- 5-mercapto-1,3,4-thiadiazole (AMT) have been applied as corrosion inhibitors in archaeological conservation. A search was conducted for similar compounds that could be applied in the conservation of copper and copper alloys. According to a list of requirements specific to archaeological conservation, six new inhibitors were tested. 2-Aminopyrimidine (AP), 5,6-Dimethylbenzimidazole (DB), 2-Mercaptobenzimidazole (MBI), 2-Mercaptobenzoxazole (MBO), 2-Mercaptobenzothiazole (MBT), 2-Mercaptopyrimidine (MP), were tested for potential archaeological conservation applications. The literature 1ists only one corrosion test for copper chloride corrosion in archaeological conservation, with intact surface corrosion products. Industrial corrosion tests were checked in American Society for Testing Materials (ASTM), British Standards Institution (BSI), Deutsche Industry Norm (DIN), International Standards Organisation (ISO). Chlorides are known to be a major factor in ongoing deterioration of copper artefacts in the museum environment. The mechanisms and types of chloride corrosion
evaluation corrosion application copper_copper alloy archaeological_artefact concern corrosion inhibit compound slow deterioration archaeological copper artefact apply corrosion archaeological conservation search conduct similar compound could_apply conservation copper_copper alloy according list requirement specific archaeological conservation new test test_potential archaeological conservation application literature corrosion test copper corrosion archaeological conservation intact surface corrosion_product industrial corrosion test check american society testing materials british institution industry norm din international organisation iso know major_factor ongoing deterioration copper artefacts museum environment mechanism type corrosion