MASS SPECTROMETRIC STUDY OF THE OXIDATION OF TUNGSTEN AND TANTALUM.

Abstract

The rates of oxidation of tungsten and tantalum were studied in the respective temperature intervals 1450-2500 and 1900-2900K at oxygen pressures between 8x10 to the minus 6th power and 7x10 to the minus 5th power Torr. The apparent partial pressures of the gaseous oxides formed, WO2, WO3, TaO and TaO2 were determined. The rate of oxidation of tantalum is strongly time dependent. At the maximum, the amounts of oxides produced represent for W and Ta respectively about 1/92 and 1/16 of the incident molecular oxygen. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1965
Accession Number
AD0622809

Entities

People

  • D. Detry
  • F. Degreve
  • J. Drowart
  • S. Smoes

Tags

DTIC Thesaurus Topics

  • Chemical Compounds
  • Elements
  • Intervals
  • Metals
  • Ores
  • Oxidation
  • Oxides
  • Oxygen Compounds
  • Partial Pressure
  • Refractory Metals
  • Rocks And Deposits
  • Tantalum
  • Transition Metals
  • Tungsten

Readers

  • Combustion science or combustion engineering.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Powder metallurgy of Titanium alloys.