Open AccessThermal properties of zirconia-alumina coatings obtained by thermal spray flame
Author(s) -
M. Ferrer,
Fabio Vargas,
Connor Moreno
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1388/1/012006
Subject(s) - materials science , thermal spraying , thermal diffusivity , laser flash analysis , cubic zirconia , porosity , composite material , scanning electron microscope , ceramic , thermal conductivity , thermal , flash point , coating , chemistry , physics , organic chemistry , quantum mechanics , meteorology
Thermal spraying makes possible to manufacture coatings of a large number of materials, including those with a high melting point, such as ceramics. There are different ways of manufacturing these coatings, two of them are air-plasma spraying and flame spray. In this study the zirconia and alumina coatings were manufactured by flame spray, their morphology was studied and compared with their thermal conductivity and diffusivity properties. The morphology was studied from scanning electron microscope micrographs and the thermal properties measured by the laser flash method. It was discovered that the type of flame used to obtain the coatings influences the percentage porosity and thickness and that this in turn, affects its thermal properties.