Low temperature thermal radiative properties of gold coated metals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F17%3A00479385" target="_blank" >RIV/68081731:_____/17:00479385 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijrefrig.2017.06.034" target="_blank" >http://dx.doi.org/10.1016/j.ijrefrig.2017.06.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijrefrig.2017.06.034" target="_blank" >10.1016/j.ijrefrig.2017.06.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low temperature thermal radiative properties of gold coated metals

Popis výsledku v původním jazyce

In order to assess the effect of gold deposition on thermal radiative properties of metallic materials, we measured total hemispherical emissivity and absorptivity of Au layers with a minimal thickness of 1 mu m in dependence on the temperature T-R of thermal radiation (from 20 K up to 320 K). Technically pure copper or titanium alloy (Ti-6Al-4V) was used as substrate while three types of Au layers were deposited by a sputtering process or a galvanic method. Emissivities among samples with Au layers ranged from 1.8 percent to 3.9 percent at room temperature. Galvanic deposition of pure Au lowered the original emissivity of Ti-6Al-4V alloy at 300 K from 15.8 percent to 3.4 percent, whereas the same deposition on mechanically polished Cu resulted in increase of emissivity by a factor of three, up to 3.2 percent. Absorptivity of each sample with Cu or Au surface was lower than its emissivity and showed a weaker dependence on T-R.

Název v anglickém jazyce

Low temperature thermal radiative properties of gold coated metals

Popis výsledku anglicky

In order to assess the effect of gold deposition on thermal radiative properties of metallic materials, we measured total hemispherical emissivity and absorptivity of Au layers with a minimal thickness of 1 mu m in dependence on the temperature T-R of thermal radiation (from 20 K up to 320 K). Technically pure copper or titanium alloy (Ti-6Al-4V) was used as substrate while three types of Au layers were deposited by a sputtering process or a galvanic method. Emissivities among samples with Au layers ranged from 1.8 percent to 3.9 percent at room temperature. Galvanic deposition of pure Au lowered the original emissivity of Ti-6Al-4V alloy at 300 K from 15.8 percent to 3.4 percent, whereas the same deposition on mechanically polished Cu resulted in increase of emissivity by a factor of three, up to 3.2 percent. Absorptivity of each sample with Cu or Au surface was lower than its emissivity and showed a weaker dependence on T-R.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/LO1212" target="_blank" >LO1212: ALISI - Centrum pokročilých diagnostických metod a technologií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Refrigeration

ISSN

0140-7007

e-ISSN

—

Svazek periodika

82

Číslo periodika v rámci svazku

OCT

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

51-55

Kód UT WoS článku

000410699800006

EID výsledku v databázi Scopus

2-s2.0-85026840019