Evaluation of Insulation Materials for Advanced Motor Systems.

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Abstract:

This report summarizes a two-year effort on the testing and evaluation of nozzle inserts and insulation for advanced propellant-motor systems. Two series of tests were performed with a 12-inch diameter motors to evaluate blast tube liner insulation, nozzle inserts, and nozzle extension insulation. Each series was tested in a characteristic environment defined by the propellant composition. The first series of six tests was made utilizing C-518 propellant containing 17.5 aluminum the second series of five tests was made with RS-2, a nonaluminized propellant. The propellant loading for both series was intended to provide 1500 psi for 10 seconds. The C-518 propellant tests burned 1 second longer at a slightly reduced pressure the RS-2 burned for approximately 9 seconds at a higher pressure. By coparing the erosion susceptibility on a unit time basis, the values are normalized sufficiently to provide comparative results. Author

Author(s):
Robinson, A. T.
Author Organization(s):
NAVAL WEAPONS CENTER CHINA LAKE CALIF
Descriptive Note:
Final rept. Jul 72-Jun 74,
Pagination:
0046

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NWC-TP-5693, GIDEP-E057-2022
Project Number(s):
A330-3300/008-B/WF31-332-301
Monitor Series:
E057-2022, 565.60.00.00-X7-03
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*SOLID PROPELLANT ROCKET ENGINES, *ROCKET NOZZLES, *THERMAL INSULATION, *BLAST TUBES, *NOZZLE INSERTS, SILICON DIOXIDE, COMPOSITE MATERIALS, CARBON FIBERS, EROSION, COPPER, ALUMINUM, POLYBUTADIENE, EPOXY RESINS, TUNGSTEN, ROCKET PROPELLANT GRAINS, SILVER, HYDROXYL RADICALS, PYROLYTIC GRAPHITE, SILICONES, SYNTHETIC RUBBER, CARBOXYL RADICALS
Field(s)/Group(s):
Laminates and Composite Materials, Solid Propellant Rocket Engines
Keyword(s):
HTPB propellant ingredient, CTPB propellant ingredient, Rayon reinforced plastics, Carbon fiber reinforced plastics, Silicone matrix composites, Phenolic matrix composites, Epoxy matrix composites
Report Date:
1976 May 01