Ultrasonic longitudinal wave velocity in carbon-carbon Pitch and Pitch/M2 shape stable nosetip material from 70/sup 0/F to 5400/sup 0/F [electronic resource].

Published: Albuquerque, N.M. : Sandia National Laboratories, 1985.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: Pages: 54 : digital, PDF file
Additional Creators: Sandia National Laboratories and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

A pulse echo method was used in two notched rods of carbon-carbon Pitch material and one rod of Pitch/M2 shape stable nosetip material to measure the temperature dependence of the longitudinal wave velocity from room temperature to 5400/sup 0/F. The velocity was constant to within 2% of the room temperature value for the Pitch parent material throughout the temperature range. For the Pitch/M2 material, the velocity increased to a maximum of 10% at 4000/sup 0/F and then decreased rapidly. Room temperature velocities in the principal directions of the composite are also given for the two Pitch rods, which showed a 15% decrease in velocity near the ends of both rods and near the side of one rod.

Report Numbers

E 1.99:sand-85-0853
sand-85-0853

Subject(s)

Materials Science

Other Subject(s)

Note

Published through SciTech Connect.
06/01/1985.
"sand-85-0853"
"DE85017330"
Gieske, J.H.

Funding Information

AC04-76DP00789

View MARC record | catkey: 14458109