SIRCA-15F [virgin]

Property: Effective Heat of Ablation

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Name: SIRCA-15F [virgin]
Database: NASA Ames Thermal Protection Materials
Category: Silicon-Based Ablators
Composition: FRCI-12 tile, infiltrated w/ silicone
Manufacturer: NASA Ames Research Center, Thermal Protection Materials and Systems Branch
Technical Readiness Level: 9
Last Modified: 2001-10-01

Description:

  • SIRCA-15F uses the Fibrous Refractory Ceramic Insulation, with 0.192 g/cc density (FRCI-12) tile substrate and is impregnated with silicone to produce a material with a final density of approximately 0.25 g/cc. SIRCA-15F was used for the aft plate heat shield and a portion of the conical aft section of the Mars/Pathfinder probe, which successfully landed on the Martian surface in July 1997. SIRCA-15F was designed, tested, and manufactured for the X-34 Program as a re-usable TPS for the nosecap and wing and rudder leading edges. SIRCA-15F is also being manufactured to support the Backshell Interface Plate (BIP) for the Mars 2003 Mission.

Point of Contact:

  • Frank S. Milos
  • NASA Ames Research Center
  • fmilos@mail.arc.nasa.gov

Effective Heat of Ablation
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Value (Btu/lbm) Pressure (psf) Temperature (R) Uncertainty Uncertainty Source
4.76e+05 211.62 N/A N/A
2.43e+06 317.43 N/A N/A
2.40e+06 317.43 N/A N/A
1.41e+05 423.24 N/A N/A
3.43e+04 634.87 N/A N/A
1.73e+04 846.49 N/A N/A