LignoSat2, the first wooden artificial satellite developed by Kyoto University’s Космос Wood Laboratory is scheduled to be jointly launched by JAXA намлява НАСА тази година ще има външна конструкция, изработена от дърво магнолия.
Това ще бъде малък сателит (nanosat).
Университет на Киото Космос 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 пространство.
Earlier, a project led by Kyoto University tested and confirmed the high wood durability of пространство wood at the International Космос 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 пространство 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 пространство exposure.The experiment results also confirmed no mass change in each wood specimen before and after пространство exposure. Based on these results, the research group decided to use Magnolia wood.
LignoStella Космос Wood Project was jointly launched by Kyoto University and Sumitomo Forestry in April 2020. The пространство exposure tests were conducted for over 240 days in 2022 on the Japanese Experiment Module Kibo of the ISS.
Use of wood in пространство is more sustainable. When dropped from орбита into the upper atmosphere, it degrades completely without any harmful byproducts.
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Литература:
- Университет Киото. Изследователски новини – Вземане на проби за устойчивост в космоса. Публикувано на 25 януари 2024 г. Достъпно на https://www.kyoto-u.ac.jp/en/research-news/2024-01-25-0
- Университет Киото. Изследователски новини – Космос: дървената граница. Университетът в Киото ще тества дървени летви на борда на японската платформа Kibo на МКС. Публикувано на 31 август 2021 г. Достъпно на https://www.kyoto-u.ac.jp/en/research-news/2021-08-31
- База данни на NanoSats. LignoSat. https://www.nanosats.eu/sat/lignosat
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