Number of the records: 1
Effect of gold coating on emissivity and absorptivity of Ti-6Al-4V alloy
- 1.
SYSNO ASEP 0478277 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Effect of gold coating on emissivity and absorptivity of Ti-6Al-4V alloy Author(s) Frolec, Jiří (UPT-D) RID, ORCID, SAI
Králík, Tomáš (UPT-D) RID, ORCID, SAI
Musilová, Věra (UPT-D) RID, SAI, ORCID
Urban, Pavel (UPT-D) RID, ORCID, SAINumber of authors 4 Source Title 14th Cryogenics 2017. IIR International Conference. Proceedings. - Praha : ICCEX, 2017 - ISSN 0151-1637 - ISBN 978-2-36215-022-7 Pages s. 492-497 Number of pages 6 s. Publication form Print - P Action Cryogenics 2017 /14./. IIR International Conference Event date 15.05.2017 - 19.05.2017 VEvent location Dresden Country DE - Germany Event type WRD Language eng - English Country CZ - Czech Republic Keywords cryogenics ; gold films ; heat transfer ; thermal radiation Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Thermodynamics R&D Projects LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) TE01020233 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UPT-D - RVO:68081731 DOI 10.18462/iir.cryo.2017.0102 Annotation The article provides experimental analysis of total hemispherical emissivity and absorptivity of Ti-6Al-4V alloy before and after deposition of 1-2 .pí.m gold layer. We measured their dependences on the temperature of thermal radiation (varying from 20 K to 320 K) and confronted these results with mechanically polished copper, i.e. with material known for extremely low emissivity and absorptivity. Galvanic deposition of pure gold resulted in significant lowering of original emissivity of Ti-6Al-4V bare surfaces from 15.8 percent to 3.4 percent at 300 K and from 4.1 percent to 1.1 percent at 20 K. Our findings about thermal-radiative properties have practical relevance for an improvement of a low temperature part of an ultra-high vacuum scanning probe microscope
(UHV-SPM) designed by our group and could also be useful for other applications and low temperature systems.Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2018
Number of the records: 1