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Titolo:
TAPPING-MODE AFM IN COMPARISON TO CONTACT-MODE AFM AS A TOOL FOR IN-SITU INVESTIGATIONS OF SURFACE-REACTIONS WITH REFERENCE TO GLASS CORROSION
Autore:
SCHMITZ I; SCHREINER M; FRIEDBACHER G; GRASSERBAUER M;
Indirizzi:
VIENNA UNIV TECHNOL,INST ANALYT CHEM,GETREIDEMARKT 9-151 A-1060 VIENNA AUSTRIA VIENNA UNIV TECHNOL,INST ANALYT CHEM A-1060 VIENNA AUSTRIA ACAD FINE ARTS,INST CHEM A-1010 VIENNA AUSTRIA
Titolo Testata:
Analytical chemistry
fascicolo: 6, volume: 69, anno: 1997,
pagine: 1012 - 1018
SICI:
0003-2700(1997)69:6<1012:TAICTC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMIC-FORCE MICROSCOPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
I. Schmitz et al., "TAPPING-MODE AFM IN COMPARISON TO CONTACT-MODE AFM AS A TOOL FOR IN-SITU INVESTIGATIONS OF SURFACE-REACTIONS WITH REFERENCE TO GLASS CORROSION", Analytical chemistry, 69(6), 1997, pp. 1012-1018

Abstract

A critical comparison between atomic force microscopy operated in both contact mode (CM-AFM) and tapping mode (TM-AFM) is presented by means of imaging surface reactions in situ. Corrosion phenomena of potash-lime-silica glass were studied under the ambient atmosphere, dry nitrogen, and nitrogen with a relative humidity of 50%, as well as under liquids by both techniques, The results show that surface reactions on sensitive samples can be imaged in situ without the need of UHV conditions. Furthermore, the initial stages of the corrosion process could beidentified as an attack of humidity, The formation of swelled glass was observed. In the presence of corrosive gases from the ambient atmosphere, the formation of secondary corrosion products took place. During the in situ investigations, both CM-AFM and TM-AFM measurements influence the corrosion phenomena observed as well as the corrosion process. CM-AFM introduces relatively high lateral forces leading to plasticdeformations of soft domains whereas TM-AFM activates surface processes by the oscillating tip transferring energy to the sample surface. These artifacts introduced by the different techniques are discussed critically.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 06:49:51