• 한국결정성장학회지
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• 제7권3호
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• pp.504-513
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• 1997

우주왕복선과 같은 발전된 비행체의 열 차단 시스템(TPS)에서의 이상적인 후보로는 섬유질 내화성 복합 절연체(FRCI)와 AETB(Alumina-Enhanced Thermal Barrier)가 있다. 이중, 본 연구에서는 FRCI의 열 펄스에 대한 열적응답을 실리카와 비교하여 수학적으로 모델링하여 전사모사 하였다. 또, 100~2000 K의 온도범위에서 FRCI의 여러 변수에 따른 각 열전도도를 계산하여 보았다.

• 한국분말재료학회지
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• 제29권6호
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• pp.477-484
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• 2022

Thermal protection systems (TPS) are a group of materials that are indispensable for protecting spacecraft from the aerodynamic heating occurring during entry into an atmosphere. Among candidate materials for TPS, ceramic insulation materials are usually considered for reusable TPS. In this study, ceramic insulation materials, such as alumina enhanced thermal barrier (AETB), are fabricated via typical ceramic processing from ceramic fiber and additives. Mixtures of silica and alumina fibers are used as raw materials, with the addition of B4C to bind fibers together. Reaction-cured glass is also added on top of AETB to induce water-proof functionality or high emissivity. Some issues, such as the elimination of clumps in the AETB, and processing difficulties in the production of reusable surface insulation are reported as well.