SOLID SOLUBILITY LIMITS OF Y AND Sc IN THE ELEMENTS W, Ta, Mo, Nb, AND Cr

Abstract

Alloys and diffusion couples of yttrium and scandium with the refractory elements Nb and Ta of Group V and Cr, Mo, and W of Group VI have been examined by means of the optical microscope, X-ray diffraction, and mass spectrometry. The results indicate that the solid solubility of Y and Sc in these elements is less than 1 part per million. This is in conformity with the Hume Rothery Rule that only a very restricted range of solid solution can be expected when the atomic diameter of solvent and solute differ by more than 14 to 15 per cent.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0409434

Entities

People

  • Andrew J. Taylor

Organizations

  • Westinghouse Electric Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Chemistry
  • Heat Treatment
  • Mass Spectra
  • Mass Spectrometry
  • Materials
  • Materials Laboratories
  • Measurement
  • Melting Point
  • Niobium
  • Phase Diagrams
  • Photoelectrochemical Cells
  • Rare Earth Alloys
  • Rare Earth Elements
  • Solid Solutions
  • Spectra
  • Spectrometry
  • X Rays

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.