High Viscosity Thermal Protection Materials Summary Report: 1July 1969-30Jun 1970,

摘要

Vacuum hot pressed nozzles of 20 v/o tungsten-80 v/o silica tested in the NOL oxy-hydrogen (H-O) rocket test motor out-performed the best of several ATJ graphite nozzles with a three fold increase in survival time. The ablation resistance varied with density and a minimum of 97% of the theoretical value was needed for satisfactory performance. (Author)