Method for emissivity measurement of semitransparent coatings at ambient temperature

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43931812" target="_blank" >RIV/49777513:23640/17:43931812 - isvavai.cz</a>

Result on the web

<a href="http://hdl.handle.net/11025/29190" target="_blank" >http://hdl.handle.net/11025/29190</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-017-01574-x" target="_blank" >10.1038/s41598-017-01574-x</a>

Result language

angličtina

Original language name

Method for emissivity measurement of semitransparent coatings at ambient temperature

Original language description

Coatings deposited on a material surface are effective way of changing its surface properties. For increasing or decreasing radiation heat transfer, coatings with high or low emissivity are used. Measurement of spectral emissivity is a fundamental step to effective use of coatings for this application. Up to now the measurement methods are focused on bulk samples and mainly opaque ones. Here we present a method enabling measurement of emissivity of semitransparent coating itself, although it is deposited on a substrate. The method is based on measurement of transmittance and reflectance using an integration sphere system and Fourier transform infrared (FTIR) spectrometer for samples with two different coating thicknesses deposited on transparent substrates. Measured transmittance of the coating indicates spectral regions of potential emissivity differences using different substrates. From all the measured values, spectral emissivity can be characterized for different coating thicknesses. The spectral range of the method is from 2 um to 20 um. The measurement is done at ambient temperature enabling measurement of samples sensitive to heating like biomedical or nanocoatings. The method was validated on known bulk samples and an example of semitransparent coating measurement is shown on high-temperature high-emissivity coating.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

33

Pages from-to

&quot;nečíslováno&quot;

UT code for WoS article

000400490600011

EID of the result in the Scopus database

2-s2.0-85018753000