AIR PLASMA ARC MATERIALS TESTING FOR RE-ENTRY.
Abstract
Materials research in a sub-sonic air plasma arc, delivering a cold wall heat flux of 700 BTU/sq ft -sec for 60 sec and a cold wall heat flux of 2400 BTU/sq ft -sec for 30 sec is described. Arc cast HfC-C, ZrC-C, TiC-C, TaC- C, TiB2-B alloys are compared with commercially hot pressed HfC-C, Ti C-C, TaC-C alloys, infiltrated tungsten and sintered and forged tungsten, pressed and cast thoria and infiltrated thoria, pyrolytic and boron pyrolytic graphites, and with standards of comparison such as ATJ graphite and boron nitride. Pairs of motion pictures show a calibrated gray scale to give a brightness temperature profile, simultaneously with a record of material reactions. Measurements of mass ablation rates and longitudinal recession rates are compared. Hot and cold face temperatures on the flat faces of solid cylindrical specimens are noted. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 17, 1964
- Accession Number
- AD0601808
Entities
People
- D. H. Leeds
- E. G. Kendall
- J. I. Slaughter
- W. E. Welsh
Organizations
- The Aerospace Corporation