LignoSat2, the first wooden artificial satellite developed by Kyoto University’s מֶרחָב Wood Laboratory is scheduled to be jointly launched by JAXA ו נאס"א השנה יהיה מבנה חיצוני עשוי עץ מגנוליה.
זה יהיה לוויין בגודל קטן (nanosat).
אוניברסיטת קיוטו מֶרחָב 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 שטח.
Earlier, a project led by Kyoto University tested and confirmed the high wood durability of שטח wood at the International מֶרחָב 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 שטח 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 שטח exposure.The experiment results also confirmed no mass change in each wood specimen before and after שטח exposure. Based on these results, the research group decided to use Magnolia wood.
LignoStella מֶרחָב Wood Project was jointly launched by Kyoto University and Sumitomo Forestry in April 2020. The שטח exposure tests were conducted for over 240 days in 2022 on the Japanese Experiment Module Kibo of the ISS.
Use of wood in שטח is more sustainable. When dropped from מסלול into the upper atmosphere, it degrades completely without any harmful byproducts.
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הפניות:
- אוניברסיטת קיוטו. חדשות מחקר - דגימה לקיימות בחלל החיצון. פורסם ב-25 בינואר 2024. זמין ב https://www.kyoto-u.ac.jp/en/research-news/2024-01-25-0
- אוניברסיטת קיוטו. חדשות מחקר - חלל: גבול העץ. אוניברסיטת קיוטו תבדוק רצועות עץ על סיפון פלטפורמת Kibo של יפן ב-ISS. פורסם ב-31 באוגוסט 2021. זמין ב https://www.kyoto-u.ac.jp/en/research-news/2021-08-31
- מסד הנתונים של NanoSats. LignoSat. https://www.nanosats.eu/sat/lignosat
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