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Abstrakt
The atomic force microscope (AFM) was invented in 1986 as an alternative to the scanning tunnelling microscope, which cannot be used in studies of non-conductive materials. Today the AFM is a powerful, versatile and fundamental tool for visualizing and studying the morphology of material surfaces. Moreover, additional information for some materials can be recovered by analysing the AFM's higher cantilever modes when the cantilever motion is inharmonic and generates frequency components above the excitation frequency, usually close to the resonance frequency of the lowest oscillation mode. This method has been applied and developed to monitor corrosion processes. The higher-harmonic imaging is especially helpful for sharpening boundaries between objects in heterogeneous samples, which can be used to identify variations in steel structures (e.g. corrosion products, steel heterogeneity). The corrosion products have different chemical structures because they are composed of chemicals other than the original metal base (mainly iron oxides). Thus, their physicochemical properties are different from the primary basis. These structures have edges at which higher harmonics should be more intense because of stronger interference between the tip and the specimen structure there. This means that the AFM's higher-harmonic imaging is an excellent tool for monitoring surficial effects of the corrosion process.
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- Licencja
- Copyright (2017 IOP Publishing Ltd)
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
MEASUREMENT SCIENCE & TECHNOLOGY
nr 28,
strony 1 - 10,
ISSN: 0957-0233 - Język:
- angielski
- Rok wydania:
- 2017
- Opis bibliograficzny:
- Babicz-Kiewlicz S., Zieliński A., Smulko J., Darowicki K.: Corrosion process monitoring by AFM higher harmonic imaging// MEASUREMENT SCIENCE & TECHNOLOGY. -Vol. 28, iss. 11 (2017), s.1-10
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1088/1361-6501/aa844a
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 125 razy
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