Static secondary ion mass spectrometry investigation of corrosion inhibitor Irgamet®39 on copper surfaces treated in power transformer insulating oil

- SSIMS was used to study corrosion inhibition of copper treated in insulating oil.
- Desorption experiments allowed the study of the inhibitor stability in vacuum.
- The energy of desorption of tolyltriazole under SSIMS conditions was calculated.
- SSIMS imaging was shown to be an applicable new diagnostic tool for transformers.