1. Thermal response analysis of low-density ablators
- Author
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Kobayashi, Yusuke, Sakai, Takeharu, Okuyama, Keiichi, Suzuki, Toshiyuki, Fujita, Kazuhisa, and Kato, Sumio
- Subjects
大気圏突入 ,空力加熱 ,thermal response ,arc heating ,アブレーション ,atmospheric entry ,コーキング ,pyrolysis ,ablation ,炭素-フェノール樹枝複合材料 ,アブレーション材料 ,carbon-phenolic composite ,軽量化 ,aerodynamic heating ,coking ,熱応答 ,ablative material ,weight reduction ,アーク加熱 ,熱分解 - Abstract
The coking phenomenon within low- density ablative material exposed to aerodynamic heating is studied. The char density of the tested material is measured by slicing the material thinly, and by weighing each of the sliced test pieces. Measured density profiles of the tested materials are compared with the calculated results obtained by a thermal response code. The surface and internal state of both pre- and post- materials are observed by using Scanning Electron Microscope (SEM) and X-ray Computed Tomography (CT). The results show that the measured density profiles is inversely increased to the heated surface. The density increase is likely due to the deposition of a solid carbon in the char region during aerodynamic heating., 資料番号: AA0063742010, レポート番号: JAXA-SP-07-016
- Published
- 2008