LignoSat2, the first wooden artificial satellite developed by Kyoto University’s Hely Wood Laboratory is scheduled to be jointly launched by JAXA és a NASA idén Magnólia fából készült külső szerkezet lesz.
Ez egy kis méretű műhold (nanosat) lesz.
Kyoto University Hely Wood Laboratory has chosen Magnolia for its relatively high workability, dimensional stability, and overall strength.
The idea is to demonstrate that the wood can be used in hely.
Earlier, a project led by Kyoto University tested and confirmed the high wood durability of hely wood at the International Hely Station (ISS). The experiment showed minimal deterioration and good stability of the samples selected for the wooden artificial satellite.
The research group conducted a preliminary inspection involving strength tests and elemental and crystal structural analyses after astronaut Koichi Wakata returned the wood sample to the Earth.The tests confirmed no decomposition or deformations, such as cracking, warping, peeling, or surface damage despite the extreme environment of outer hely involving significant temperature changes and exposure to intense cosmic rays and dangerous solar particles for ten months. The three wood specimens showed no deformation after hely exposure.The experiment results also confirmed no mass change in each wood specimen before and after hely exposure. Based on these results, the research group decided to use Magnolia wood.
LignoStella Hely Wood Project was jointly launched by Kyoto University and Sumitomo Forestry in April 2020. The hely exposure tests were conducted for over 240 days in 2022 on the Japanese Experiment Module Kibo of the ISS.
Use of wood in hely is more sustainable. When dropped from pálya into the upper atmosphere, it degrades completely without any harmful byproducts.
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Referenciák:
- Kiotói Egyetem. Kutatási hírek – Mintavétel a fenntarthatóság érdekében a világűrben. Közzétéve: 25. január 2024. Elérhető: https://www.kyoto-u.ac.jp/en/research-news/2024-01-25-0
- Kiotói Egyetem. Kutatási hírek – Űr: a fahatár. A Kiotói Egyetem faléceket tesztel a japán Kibo platform fedélzetén az ISS-en. Közzétéve: 31. augusztus 2021. Elérhető: https://www.kyoto-u.ac.jp/en/research-news/2021-08-31
- NanoSats adatbázis. LignoSat. https://www.nanosats.eu/sat/lignosat
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