ON REACTIVE DIFFUSION OF BORON AND CARBON IN HIGH-MELTING TRANSIENT METALS,

Abstract

This paper deals with an investigation of the effect of the conditions of boration and carbidization of titanium, zirconium, niobium, tantalum, molybdenum and tungsten on the structure, phase composition and thickness of diffusive carbide and boride coatings. The parameters of the diffusion of boron and carbon in the enumerated metals are determined by the results of metallographic, x-ray and chemical investigations, as well as measurements of the thickness and microhardness of the diffusion layers. The previously established dependence between thecriterion of acceptor capacity of the d-electron shell of metal atom1/Nn (n is the number of electrons on the d-shell, N is the principal quantum number) and the magnitude of energy activation is confirmed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 22, 1965
Accession Number
AD0610792

Entities

People

  • G. V. Samsonov
  • O. P. Epik

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Diffusion
  • Electrons
  • Elements
  • Measurement
  • Metals
  • Microhardness
  • Molybdenum
  • Physical Properties
  • Quantum Numbers
  • Refractory Metals
  • Tantalum
  • Thickness
  • Titanium
  • Transition Metals
  • Tungsten
  • X Rays

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing