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Laser processing of...
Laser processing of minerals common on asteroids
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- Anthony, Niklas (författare)
- Luleå tekniska universitet,Rymdteknik,Asteroid Engineering
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- Frostevarg, Jan, Teknologie doktor, 1982- (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Suhonen, Heikki (författare)
- Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
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- Wanhainen, Christina (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Penttilä, Antti (författare)
- Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
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- Granvik, Mikael (författare)
- Luleå tekniska universitet,Rymdteknik,Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Optics and Laser Technology. - : Elsevier. - 0030-3992 .- 1879-2545. ; 135
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Asteroid mining and redirection are two trends that both can utilize lasers, one to drill and cut, the other to ablate and move. Yet little is known about what happens when a laser is used to process the types of materials we typically expect to find on most asteroids. To shed light on laser processing of asteroid material, we used a 300-W, pulsed Ytterbium fiber laser on samples of olivine, pyroxene, and serpentine, and studied the process with a high-speed camera and illumination laser at 10 000 frames per second. We also measure the sizes of the resulting holes using X-ray micro-tomography to find the pulse parameters which remove the largest amount of material using the least amount of energy. We find that at these power densities, all three minerals will melt and chaotically throw off spatter. Short, low-power pulses can efficiently produce thin, deep holes, and long, high-power pulses are more energy efficient at removing the most amount of material.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Nyckelord
- Laser drilling
- High-speed imaging
- X-ray micro-tomography
- Asteroid mining
- Onboard space systems
- Rymdtekniska system
- Produktionsutveckling
- Manufacturing Systems Engineering
- Ore Geology
- Malmgeologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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