A method of remotely measuring surface recession of a material sample in plasma flow through emission spectroscopy of the post shock layer was characterized through experiments in the NASA Langley Hymets arcjet facility. Different methods for delivering the seed products into the Phenolic Impregnated Carbon Ablator (PICA) material samples were investigated. Three samples were produced by seeding the PICA material with combinations of Al, Si, Hf02, VB2, AL203, Si02, TiC, HfC, NaCl, and MgCl2 through infusing seed materials into a core of PICA, or through encapsulating seed material in an eppoxy disk, mechanically bonfing the disk to a PICA sample.
Butler, B.D., Winter, M., Panerai, F., Martin, A., Bailey, S.C., Stackpoole, M., Danehy, P.M. and Splinter, S., 2016. Characterization of Candidate Materials for Remote Recession Measurements of Ablative Heat Shield Materials. In 54th AIAA Aerospace Sciences Meeting (p. 1516).
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Categories: Material & Chemical