FABRICATION OF TUNGSTEN FOR SOLID-PROPELLANT ROCKET NOZZLES
Abstract
The problem in solid-propellant rocket motors of suitable materials for the throats of nozzles was studied. The maximum heat flux and maximum erosive attack in the motor system occur here. Of the refractory materials available, W and graphite have proven to be the best for nozzles subject to the most severe environments. W has much better erosion resistance and is preferred for multiple nozzle motors where erosion rate is citical and where throats are moderately small. The meta-fabriation industry has recently acquired experience in preparing massive tungsten shapes and sheet in sizes large enough for rocket- nozzle construction. Work on the fabrication of W by forging melted as well as pressed and sintered materials is reported. The performance of nozzle inserts has been related to the specific fabrication processes used in consolidating the metal into massive form. The consolidation and fabrication processes being used to produce large tungsten shapes and sheet, the general physical characteristics of the various types of tungsten being shaped into rocket nozzles, and the performance of these in solid-fuel rocket motors are reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 02, 1961
- Accession Number
- AD0268311
Entities
People
- D. J. Maykuth
- Robert Isaac Jaffee
- V. D. Barth
Organizations
- Battelle Memorial Institute