NDT & E for the surface roughness of marble

Avdelidis, NP; Moropoulou, A; Delegou, ET; Almond, DP

dc.contributor.author	Avdelidis, NP	en
dc.contributor.author	Moropoulou, A	en
dc.contributor.author	Delegou, ET	en
dc.contributor.author	Almond, DP	en
dc.date.accessioned	2014-03-01T02:49:50Z
dc.date.available	2014-03-01T02:49:50Z
dc.date.issued	2004	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34754
dc.subject	Infrared thermography	en
dc.subject	Laser profilometry	en
dc.subject	Marble	en
dc.subject	Pixels intensity	en
dc.subject	Surface roughness	en
dc.subject.other	Laser applications	en
dc.subject.other	Marble	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Profilometry	en
dc.subject.other	Surface cleaning	en
dc.subject.other	Surface roughness	en
dc.subject.other	Laser profilometry	en
dc.subject.other	Pixels intensity	en
dc.subject.other	Three dimensional micro topography	en
dc.subject.other	Thermography (imaging)	en
dc.title	NDT & E for the surface roughness of marble	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.541311	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.541311	en
heal.publicationDate	2004	en
heal.abstract	Two non-contact NDT & E (non-destructive testing and evaluation) techniques were employed in the inspection of quarry Pentelic marble samples; surface profilometry and infrared thermography. The samples were processed with different roughness treatments (i.e. 60, 80, 100, 220, 400 and 600 mesh) and were evaluated in the laboratory. Furthermore, different surface cleaning treatments were applied to a Pentelic marble surface in situ and then representative samples were collected and evaluated in the laboratory by the means of these two non-destructive techniques. Quantitative analysis of all samples was performed. In particular, the surface roughness parameter Rq at a specific length scale and 3-D micro-topography plots were attained by the use of the laser profilometry scanning approach, whilst temperature - time plots displaying the intensity of pixels as a function of time on the obtained thermal images were also obtained with the intention of distinguishing the influence of the applied roughness treatments. Results indicate that these two non-destructive techniques can be used for the assessment of surface roughness.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.541311	en
dc.identifier.volume	5405	en
dc.identifier.spage	425	en
dc.identifier.epage	430	en