Combined kinetic and X-ray electron probe microanalysis characterization of local porosity variation and pore shape across anodic alumina films

Patermarakis, GS; Kytopoulos, VN

dc.contributor.author	Patermarakis, GS	en
dc.contributor.author	Kytopoulos, VN	en
dc.date.accessioned	2014-03-01T01:26:02Z
dc.date.available	2014-03-01T01:26:02Z
dc.date.issued	2007	en
dc.identifier.issn	0167-577X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17887
dc.subject	Anodic alumina	en
dc.subject	Kinetics	en
dc.subject	Pore shape	en
dc.subject	Porosity	en
dc.subject	Thick films	en
dc.subject	X-ray EPMA	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Mathematical models	en
dc.subject.other	Porosity	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Thermal effects	en
dc.subject.other	Thick films	en
dc.subject.other	Anodic alumina	en
dc.subject.other	Kinetic model	en
dc.subject.other	Pore shape	en
dc.subject.other	X-ray EPMA	en
dc.subject.other	Metallic films	en
dc.title	Combined kinetic and X-ray electron probe microanalysis characterization of local porosity variation and pore shape across anodic alumina films	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.matlet.2007.03.091	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.matlet.2007.03.091	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Porous anodic alumina films on Al were prepared by anodic oxidation of Al in H2SO4 electrolyte at a constant temperature and current density and different thicknesses, up to approximate to 41 mu m. Their cross section was examined by EPMA for revealing the variation of local porosity across the films and shape of pores while a kinetic model for film growth was developed describing the variation of pore diameter. It was found that the pores open, and local porosity increases, towards the film surface, predicting a conical pore shape, while the results coincided with those obtained by kinetic study. The EPMA analysis combined with kinetic results emerges as a promising tool for studying structural features of these films. (C) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Materials Letters	en
dc.identifier.doi	10.1016/j.matlet.2007.03.091	en
dc.identifier.isi	ISI:000250738700007	en
dc.identifier.volume	61	en
dc.identifier.issue	28	en
dc.identifier.spage	4997	en
dc.identifier.epage	5003	en