LignoSat2, the first wooden artificial satellite developed by Kyoto University’s Χώρος Wood Laboratory is scheduled to be jointly launched by JAXA και NASA this year will have outside structure made of Magnolia wood.
Θα είναι δορυφόρος μικρού μεγέθους (nanosat).
Πανεπιστήμιο του Κιότο Χώρος 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 χώρος.
Earlier, a project led by Kyoto University tested and confirmed the high wood durability of χώρος wood at the International Χώρος 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 χώρος 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 χώρος exposure.The experiment results also confirmed no mass change in each wood specimen before and after χώρος exposure. Based on these results, the research group decided to use Magnolia wood.
LignoStella Χώρος Wood Project was jointly launched by Kyoto University and Sumitomo Forestry in April 2020. The χώρος exposure tests were conducted for over 240 days in 2022 on the Japanese Experiment Module Kibo of the ISS.
Use of wood in χώρος is more sustainable. When dropped from τροχιά into the upper atmosphere, it degrades completely without any harmful byproducts.
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αναφορές:
- Πανεπιστήμιο του Κιότο. Ερευνητικά νέα – Δειγματοληψία για αειφορία στο διάστημα. Δημοσιεύθηκε στις 25 Ιανουαρίου 2024. Διαθέσιμο στο https://www.kyoto-u.ac.jp/en/research-news/2024-01-25-0
- Πανεπιστήμιο του Κιότο. Ερευνητικά νέα – Διάστημα: τα ξύλινα σύνορα. Το Πανεπιστήμιο του Κιότο θα δοκιμάσει ράγες ξύλου στην πλατφόρμα Kibo της Ιαπωνίας στον ISS. Δημοσιεύθηκε στις 31 Αυγούστου 2021. Διαθέσιμο στο https://www.kyoto-u.ac.jp/en/research-news/2021-08-31
- Βάση δεδομένων NanoSats. LignoSat. https://www.nanosats.eu/sat/lignosat
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