Accession Number:

AD0266664

Title:

TUNGSTEN AND ROCKET MOTORS

Descriptive Note:

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

Report Date:

1961-11-07

Pagination or Media Count:

1.0

Abstract:

Erosion experiments were made on small tungsten rods with Al2O3 in the plasma flame at temperatures near the melting point of W. The specimens, 532-inch-diameter tungsten Heli-arc electrodes approximately 3-12 inches long 2 thorium, close to 100 theoretical densi y, were positioned coaxially with the plasma flame and the tip temperature was measured with an optical pyrometer which had been calibrated for experimental conditions at the melting point of tungsten. Erosion parameters measured were the change in specimen length, and the weight loss or gain. Al2O3 alone does not cause significant erosion of W. A mathematical calculation of the thermal stresses on the outer ring fiber is given. It is therefore desirable to be able accurately to measure or calculate the thermal stress on the outer ring fiber. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE