Thermal barrier concepts against continuous laser irradiation

• Autorzy: Lenarczyk M. , Domański R.

Identyfikatory

DOI

10.5604/01.3001.0012.2806

• Języki publikacji: EN

Abstrakty

EN

Rapid development in the high-power laser technology poses new requirements on the thermal protective materials. Military laser applications have been characterized and the examples have been presented. Existing materials, which may be used as a protection against high-energy laser beam, have been discussed. Several concepts of the new thermal barrier materials have been proposed. The proposals include multilayer structures, porous materials, systems with phase change materials (PCMs), and systems with various thermal contact resistance for different contact pairs. Comparative study based on numerical simulation results has been performed to assess efficiency of each proposal. Three major candidate technologies were considered: the CO2 laser, the HF/DF chemical laser, and the Nd-glass solid-state laser. The CO2 combustion driven gas laser was built in mid-seventies. Its power was 500 kW with the poor beam quality. In the context of thermal protection against laser, high conductive material component in a complex structure might be especially useful, since irradiated surface is usually limited to a small size.

Słowa kluczowe

EN

laser weapons; thermal barriers; multilayer structures; phase-change process; thermal contact resistance

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2018
• Tom: Vol. 25, No. 2
• Strony: 231--238
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Lenarczyk M.

• Institute of Aviation Krakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Domański R.

• The Institute of Aviation Krakowska Ae. 110/114, 02-256 Warsaw, Poland tel.: [phone], fax: [phone]

Bibliografia

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• [5] Domański, R., Nowe materiały konstrukcyjne o podwyższonej przewodności cieplnej, Warsaw University of Technology, Warsaw 2013.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).