Surface Analysis of Organic Materials with Polyatomic Primary Ion Sources

Mahoney, Christine M.

doi:10.1002/9781118589335.ch4

Cited by 1 publication

(1 citation statement)

References 207 publications

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“…This technique is particularly well-suited to the study of organic overlayers at metal surfaces due to its unique molecular selectivity, through the observation of emitted molecular or fragment ions characteristic of the organic corrosion inhibitor molecule [35]. In the present study, desorption of the corrosion inhibitor is conveniently visualised as a series of colour-coded images collected as the samples undergo a controlled heating ramp across a range of temperatures.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2015

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Static secondary ion mass spectrometry was used to study the corrosion inhibitor Irgamet®39 on the surface of copper treated in insulating oils and the effect of temperature changes, by means of temperature programmed desorption experiments under vacuum, on metal coverage. Four commercial oils, both corrosive and noncorrosive, showed no significant influence on the stability of the tolyltriazole layer and the energy of its main desorption event from copper was calculated around 100 kJ mol -1 . Finally, an example of ion imaging as diagnostic tool to track the distribution of corrosion inhibitor and by-products in decommissioned or failed power transformers is described. Highlights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.

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Section: Introductionmentioning

confidence: 99%