DIFFRACTION STUDIES OF CRYSTAL IMPERFECTIONS

Abstract

Research on the following 5 reports is summarized: (1) The effect of temperature on local order diffuse scattering from alloys. I; (2) The effect of temperature on local order diffuse scattering from alloys. II. Alloys with atomic size effects; (3) Short-range order in Cu3Au; (4) Order in beta-AgCd; and (5) Solid solubility of Pb in Mg below 300 C. Problems considered during the report period included order-disorder transformations, lattice vibrations, point imperfections and diffraction theory. Research was incomplete on: (a) A neutron diffraction study of short range order in beta-brass; (b) Order in FeCo and FeCr alloys; (c) Temperature diffuse scattering in powders; and (d) Point defects in crystals. Measurements were made in the beta-brass study of the diffuse scattering of monochromatic thermal neutrons from single crystals of beta brass at temperatures above the critical temperature. Long range ordering in FeCo, Fe3Co and FeCr(b) was investigated by neutron diffraction.

Document Details

Document Type
Technical Report
Publication Date
Aug 14, 1961
Accession Number
AD0262536

Entities

People

  • Christopher B. Walker

Organizations

  • University of Chicago

Tags

DTIC Thesaurus Topics

  • Critical Temperature
  • Crystal Lattice Vibrations
  • Crystal Lattices
  • Crystals
  • Diffraction
  • Neutron Diffraction
  • Neutrons
  • Order Disorder Transformations
  • Point Defects
  • Scattering
  • Single Crystals
  • Thermal Neutrons
  • Transition Temperature

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.