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電波透過性と高断熱性を兼備した機能的熱制御多層膜の創製

创建兼具无线电波透明度和高隔热性能的功能性热控制多层薄膜

基本信息

批准号：
20K14948
负责人：
冨岡孝太
金额：
$ 2.75万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Early-Career Scientists
财政年份：
2020
资助国家：
日本
起止时间：
2020-04-01 至 2022-03-31
项目状态：
已结题

项目摘要

近年、深宇宙探査機や月面探査機などの過酷な低温環境を経験する宇宙機が提案されている。しかし、電波通過面に適用できる高機能な熱制御材料は無く、厳しい熱環境では熱設計が成立しない。本研究では、自然界には存在しない電波透過性を有する宇宙用断熱材料RT-MLI(Radiowave Transmissive Multilayer Insulation)を創製し、革新的な熱制御システムを実現する。RT-MLIの高断熱化のためには、電波透過性を有し、低放射率な材料の開発が必須である。そこで、誘電体多層膜の干渉を使って低放射率を示す電波透過型赤外反射材を新たに創製する。本年度は誘電体のみで構成される電波透過型赤外反射材COSF-IR5を試作し、その熱光学特性について評価した。以下に具体的内容について記す。1.Ge/ZnS多層膜の設計を遺伝的アルゴリズムによって行い、370Kにおいて垂直放射率0.06,全半球放射率0.07を示す熱制御材COSF-IR5を設計した。2.COSF-IR5の垂直放射率をFTIRによって測定し、370 Kにおいて0.10の値を示すことが分かった。3.COSF-IR5の全半球放射率をカロリメトリ法（170-370K）によって行い、370Kにおいて全半球放射率0.13を示した。以上のように、金属と同程度の低放射率を示しながら電波透過性を示す材料はこれまでに無く、宇宙用電波透過型断熱材に加え、熱ふく射の寄与が大きい地上での断熱材においても使用することが出来ると考えている。

In recent years, the Deep Space Exploration vehicle, the lunar probe, the lunar probe, the cold environment, the cold environment, the space vehicle, the deep space probe, the lunar probe, the lunar probe, the deep space probe, the deep space probe, the lunar probe, the deep space probe, the deep space probe, the lunar probe, the deep space probe, the deep space probe, the lunar probe, the cold environment, the space vehicle, the deep space probe, the deep space probe, the lunar probe, the deep space probe, the deep space probe, the lunar probe, the deep space probe, the lunar probe, the cold environment, the cold environment, the space vehicle, the deep space probe, the lunar probe, the cold environment The equipment and airwaves can be used to control the quality of materials and set up the equipment of the environmental protection system. In this study, there are many kinds of radio wave transmission in the natural world, such as RT-MLI (Radiowave Transmissive Multilayer Insulation) cut-off material used in the universe, and the innovative microwave transmission system. RT-MLI materials with high cut-off temperature, low emissivity and low emissivity must be used. The low emissivity of radio wave permeable infrared reflective materials is very important because of the low emissivity of microwave and electronic multilayer films. This year, the electronic equipment has been used to improve the optical properties of infrared reflectors such as COSF-IR5, radio wave transmission and optical properties. The following "details" will be recorded. The vertical emissivity at 370K and the emissivity of the whole hemisphere at 370K are 0.06 and 0.07, respectively. The COSF-IR5 equipment is designed for the 1.Ge/ZnS multilayer film design. 2.COSF-IR5 vertical emissivity FTIR measurement, 370K emissivity, 0.10 emissivity, vertical emissivity measurement, 370K emissivity measurement, 370K emissivity measurement and 370K emissivity measurement. The global hemispheric emissivity was measured by 3.COSF-IR5 (170K-370K) and the whole hemispheric emissivity was 0.13K at 370K. With the same degree of low emissivity of the above materials, the low emissivity of metals shows that the transmission properties of the materials are free, and that the materials used in the universe are free of airwave penetration, and that the materials used in the cosmos are cut-off materials for use in the universe. they are used to test the quality of cut-off materials.