RESEARCH AND DEVELOPMENT ON NEW PROCESSES OF PRODUCING DUCTILE MOLYBDENUM

Abstract

Identifiers: Ductility. The MoS2 thermal dissociation process was reexamined in light of recent improvements in the purity of commercial molybdate powders. The Mo powder produced by thermal dissociation of MoS2 was not considered equivalent to the product of H reduction of ammonium paramolybdate. Thermal dissociation work was replaced by a program of research aimed at finding new means for producing high quality ductile Mo. One phase was to investigate the possibility of producing Mo with a low ductile-to-brittle transition temperature by solid-state purification of commercial, unalloyed Mo. A description is given of an apparatus constructed to determine the practical limitations of solid-state purification techniques. Samples of swaged and swaged plus zone-refined Mo were evaluated. Results indicated that the starting material was rather pure, and that some contamination occurred during zone-refining. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 02, 1962
Accession Number
AD0274513

Entities

People

  • Phillip Coldren
  • William G. Scholz

Tags

DTIC Thesaurus Topics

  • Contamination
  • Dissociation
  • Ductile Brittle Transition
  • Ductility
  • Materials
  • Materials Processing
  • Molybdates
  • Molybdenum
  • Molybdenum Compounds
  • Refining
  • Transition Temperature
  • Transitions

Fields of Study

  • Materials science

Readers

  • Combustion science or combustion engineering.
  • Educational Psychology
  • Metallurgy