Open AccessA STUDY ON THERMAL PROPERTIES FOR ZrO2 COATINGS BY ARC PHOTOTHERMAL TECHNIQUE AND FINITE-DIFFERENCE THERMAL FLOW MODEL
Author(s) -
Du Ying-Lei,
Wu Bai-Mei
Publication year - 1994
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.1821
Subject(s) - thermal diffusivity , materials science , thermal conductivity , thermal conductivity measurement , thermal , coating , photothermal therapy , finite difference method , flow (mathematics) , thermal effusivity , finite difference , composite material , laser flash analysis , thermal contact conductance , mechanics , thermodynamics , thermal resistance , nanotechnology , physics , mathematical analysis , mathematics
The thermal conductivity and thermal diffusivity of ZrO2 coatings were studied using arc-photothermal evaluation technique in which the sample was heated at front surface and detected at back surface, and finite-difference thermal flow model was applied. The values of thermal conductivity and thermal diffusivity of ZrO2 are ·· and α2, respectively. It is shown that, first, the finite-difference thermal flow model is an available and useful method for the multilayer coating system, and, second, the arc photothermal evaluation technique has low cost of equipment, and more simple and convenient measurement.