guest ::
| Home > Conference materials > Papers > Effect of gold coating on emissivity and absorptivity of Ti-6Al-4V alloy |
Original title:
Effect of gold coating on emissivity and absorptivity of Ti-6Al-4V alloy
Authors: Frolec, Jiří ; Králík, Tomáš ; Musilová, Věra ; Urban, Pavel
Document type: Papers
Conference/Event: Cryogenics 2017 /14./. IIR International Conference, Dresden (DE), 20170515
Year: 2017
Language: eng
Abstract: 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\n(UHV-SPM) designed by our group and could also be useful for other applications and low temperature systems.
Keywords: cryogenics; gold films; heat transfer; thermal radiation
Project no.: LO1212 (CEP), TE01020233 (CEP)
Funding provider: GA MŠk, GA TA ČR
Host item entry: 14th Cryogenics 2017. IIR International Conference. Proceedings, ISBN 978-2-36215-022-7, ISSN 0151-1637
Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0274395
Permalink: http://www.nusl.cz/ntk/nusl-364658
The record appears in these collections:
Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers
Authors: Frolec, Jiří ; Králík, Tomáš ; Musilová, Věra ; Urban, Pavel
Document type: Papers
Conference/Event: Cryogenics 2017 /14./. IIR International Conference, Dresden (DE), 20170515
Year: 2017
Language: eng
Abstract: 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\n(UHV-SPM) designed by our group and could also be useful for other applications and low temperature systems.
Keywords: cryogenics; gold films; heat transfer; thermal radiation
Project no.: LO1212 (CEP), TE01020233 (CEP)
Funding provider: GA MŠk, GA TA ČR
Host item entry: 14th Cryogenics 2017. IIR International Conference. Proceedings, ISBN 978-2-36215-022-7, ISSN 0151-1637
Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0274395
Permalink: http://www.nusl.cz/ntk/nusl-364658
The record appears in these collections:
Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers
Record created 2017-10-04, last modified 2021-11-24