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Low temperature radiative properties of materials used in cryogenics

SYSNO ASEP	0022389
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Low temperature radiative properties of materials used in cryogenics
Title	Nízkoteplotní tepelně radiační vlastnosti materiálů užívaných v kryotechnice
Author(s)	Musilová, Věra (UPT-D)_{RID, SAI, ORCID} Hanzelka, Pavel (UPT-D)_{RID, ORCID, SAI} Králík, Tomáš (UPT-D)_{RID, ORCID, SAI} Srnka, Aleš (UPT-D)_{RID, ORCID, SAI}
Source Title	Cryogenics. - : Elsevier - ISSN 0011-2275 Roč. 45, č. 8 (2005), s. 529-536
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	structural materials ; radiant properties ; cryostats
Subject RIV	BJ - Thermodynamics
R&D Projects	IBS2065109 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
UT WOS	000232093500001
DOI	10.1016/j.cryogenics.2004.11.010
Annotation	Radiative heat transfer between two parallel surfaces, a sample surface and a black surface, was measured. One of the surfaces was cooled with liquid helium to about 5 K and the other one was step by step heated to temperatures ranging between 30 K and 140 K. As a result, the total hemispherical absorptivity and emissivity of the sample surface were determined in dependence on the temperature of the heat radiation. Aluminium samples were made of Al sheet, Al foil and aluminized mylar. Further measurements were performed on sheets of aluminium alloy, Cu, zinc brass and stainless steel. The influence of different types of sample treatment such as chemical and mechanical surface finishing and material annealing on the radiative properties is presented.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2006

Number of the records: 1