STUDY OF THE MECHANISM OF FAILURE OF ROCKET MATERIALS. Period Covered: February 1, 1957 to January 31, 1958

Technical Report · Tue Apr 01 04:00:00 EST 1958

OSTI ID:4274068

Baskin, Y; Greening, T A

Twenty-five different materials were evaluated as nozzle inserts in rocket motors utilizing typical solid propellants. Evaluaiion of each material consisted of its exposure to the high-temperature sonic gas flow of solid propellant engines under conditions of high internal chamber pressure for relatively short periods. Some of the nozzle materials were incorporated in subsequent trials at various combinations of chamber pressure and duration. Unfired and fired nozzles were examined. utilizing x-ray-diffraction, microscopic, chemical, metallographic, and other analytical techniques. Chemical changes taking place in the nozzle as a conseqanence of firing are described. The mechanisms considered responsible for deterioration of the various materials are discussed in detail. (auth)

• Research Organization: Illinois Inst. of Tech., Chicago. Armour Research Foundation
• NSA Number: NSA-13-003000
• OSTI ID: 4274068
• Report Number(s): WADC-TR-58-152; AD-155804
• Country of Publication: United States
• Language: English

Related Subjects

CHEMICAL REACTIONS
COMBUSTION
DIFFRACTION
FAILURES
GAS FLOW
HIGH TEMPERATURE
MATERIALS TESTING
METALLOGRAPHY
METALLURGY AND CERAMICS
MICROSCOPY
MOTORS
NOZZLES
PRESSURE VESSELS
PROPULSION
QUALITATIVE ANALYSIS
ROCKETS
SOLIDS
SOUND
X RADIATION