Progress in Manufacturing & Characterizing Domestic Lyocell PICA (PICA-D) and Comparison to Heritage PICA

[摘要] NASA ARC (Ames Research Center) is working with SMD-PSD (NASA Science Mission Directorate- Planetary Science Directorate) to address PICA ( Phenolic Impregnated Carbon Ablator) rayon sustainability concerns. In FY16/17, Lyocell Based PICA (PICA-D (Domestic)) was manufactured and limited testing performed showing it to be a good candidate as a potential replacement for heritage rayon. Establishing PICA-D as a "drop in replacement" will allow missions to depend on and design missions with PICA without any risk typical of a replacement. Establishing the extended capability of PICA-D will allow Sample Return Missions with higher entry speed that were not considered before.

[发布日期] 2019-04-23

[学科分类] 工程和技术（综合）

[关键词] ABLATIVE MATERIALS;RAYON;CARBON-PHENOLIC COMPOSITES;SUBSTITUTES;THERMODYNAMIC PROPERTIES;ARC HEATING;PERFORMANCE TESTS;HEAT SHIELDING;MANUFACTURING;SAMPLE RETURN MISSIONS