The corrosion of gold and silver coated copper by the thermal degradation products of chloroprene and silicone rubber
| Autor: | E.S. Lugovskaja, V.A. Lavrenko, B.V. Fenochka, A. G. Koval, Yu.A. Klimovskii, S.P. Gordienko |
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| Rok vydání: | 1978 |
| Předmět: |
Materials science
Chloroprene General Chemical Engineering Metallurgy chemistry.chemical_element General Chemistry engineering.material Silicone rubber Copper Corrosion Metal chemistry.chemical_compound Coating Natural rubber chemistry Chemical engineering visual_art engineering visual_art.visual_art_medium Chlorine General Materials Science |
| Zdroj: | Corrosion Science. 18:809-818 |
| ISSN: | 0010-938X |
| Popis: | The corrosion of gold and silver coatings on copper by the thermal degradation products (100°C) of chloroprene and silicone rubber has been studied by mass-spectrometry, secondary ion mass-spectrometry (SIMS) of interaction products and petrographic analysis of corrosion films. The volatile products of degradation of both organic materials greatly influence the protective coating of gold and silver; the composition of chloroprene rubber is more aggressive and along with decomposition of the protective coating, corrosion leads to the partial removing of the coating with simultaneous corrosion of a copper substrate. Formic acid vapours and chlorine are the most corrosion active components of the atmosphere. These substances produce the unstable gold and silver salts, chlorides and formates, extracting during their degradation fine dispersed crystals of a secondary metal, these being one of the main corrosion products. |
| Databáze: | OpenAIRE |
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