The influence of the amount of ammonium sulfate particles on the atmospheric 
corrosion mechanism of copper

Unger, M.; Stratmann, Martin; Lobnig, Renate Elfriede

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

会議論文

The influence of the amount of ammonium sulfate particles on the atmospheric corrosion mechanism of copper

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Unger, M., Stratmann, M., & Lobnig, R. E. (1998). The influence of the amount of ammonium sulfate particles on the atmospheric corrosion mechanism of copper. In P. M., Natishan, H. S., Isaacs, M., Janik Czachor, V. A., Macagno, P., Marcus, & M., Seo (Eds.), Proceedings of the Symposium on Passivity and its Breakdown (pp. 949-960).

引用: https://hdl.handle.net/11858/00-001M-0000-0019-735F-5

要旨

The influence of the amount of submicron ammonium sulfate ((NH4)(2)SO4) particles on the corrosion mechanism of copper has been investigated at 93% relative humidity (RH) and room temperature with surface analytical methods. Posnjakite (Cu-4(OH)(6)SO4 H2O) is the first corrosion product identified. For particle deposits up to 0.3mg/cm(2) (NH4)(2)SO4, the posnjakite decomposes and Cu2O is formed, With 13mg/cm(2) (NH4)(2)SO4, conversion of posnjakite to brochantite (Cu-4(OH)(6)SO4) or antlerite (Cu-3(OH)(4)SO4) takes place instead. The reaction rate increases with decreasing amounts of particle deposits.