Acoustic characterization of powder coating adhesion

R. Gr Maev, Brian O'Neill, A. Aczel, Ev Leshchinsky

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Modern powder spraying techniques now offer the possibility of modifying the surface of an engineering component. One important and often overriding factor is the degree of adhesion between the coating and its substrate. We have deployed a novel method of monitoring the tensile failure of the powder coating-substrate interface using the reflection of ultrasonic signals from the interface. These changes may be related to the strain of the coating under loading as well as the initiation and propagation of interfacial delamination or damage. The sensitivity of the acoustic method makes it an ideal way to monitor stress relaxation or creep processes as well as the impact of loading and unloading the sample. In this paper, we describe how the method was applied to the pure tensile mode testing of the powder spray coating's adhesive bonding strength.

Original languageEnglish (US)
Title of host publicationEuro PM 2005
Subtitle of host publicationPowder Metallurgy Congress and Exhibition
PublisherEuropean Powder Metallurgy Association (EPMA)
Pages261-265
Number of pages5
Volume3
ISBN (Print)9781899072187
StatePublished - Jan 1 2005
EventEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2005 - Prague, Czech Republic
Duration: Oct 2 2005Oct 5 2005

Other

OtherEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2005
CountryCzech Republic
CityPrague
Period10/2/0510/5/05

ASJC Scopus subject areas

  • Mechanics of Materials
  • Ceramics and Composites
  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics

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