Experimental Investigation on the Reliability of Thermal Wave Interferometry in the Thermophysical Characterization of Plasma Sprayed Coatings

Download
  1. (PDF, 324 KB)
  2. Get@NRC: Experimental Investigation on the Reliability of Thermal Wave Interferometry in the Thermophysical Characterization of Plasma Sprayed Coatings (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1007/s10765-005-5584-4
AuthorSearch for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Thermophysics
Volume26
Issue3
Pages881892; # of pages: 11
Subjectcoating; plasma-spray; thermal conductivity; thermal diffusivity; thermal effusivity; thermal wave interferometry; tungsten; zirconia
AbstractThe main focus of this work is to compare thermal diffusivity and effusivity data resulting from thermal wave interferometry (TWI) experiments on tungsten coatings of different thicknesses with those obtained using reference techniques, namely, the laser flash method and scanning electron microscopy (SEM). The deviations between TWI and the latter techniques are discussed in terms of lack of data in the low frequency range. The investigation shows that the lack of data at low frequencies does not affect diffusivity measurements, while it has a strong effect on effusivity measurements for thermally thick coatings. The conclusions of this experimental study are in good agreement with theoretical predictions resulting from a sensitivity analysis reported in a previous study.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NRC number53797
NPARC number15973258
Export citationExport as RIS
Report a correctionReport a correction
Record identifierb9e6e0dc-27e1-4479-8e29-6e6e8f3c8c13
Record created2010-11-02
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)