Surface Structure and Growth of Crystalline Materials.

Abstract

Computer simulation methods have been used to study spiral crystal growth from multiple dislocation edges. The results showed that after the spiral arms had all interacted once growth proceeded in agreement with the Burton-Cabrera-Frank continuum theory. For small Frank-Read dislocations the existence of a nucleation barrier was shown. Computer simulation studies of simple models of magnetic (binary alloy) lattices with exposed surfaces were also carried out. Surface order-disorder and order-order transitions were studied as a function coupling both below and above the bulk transition surface. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 14, 1981
Accession Number
ADA105223

Entities

People

  • David P. Landua

Organizations

  • University of Georgia Research Foundation

Tags

DTIC Thesaurus Topics

  • Binary Alloys
  • Computer Simulations
  • Computers
  • Couplings
  • Critical Temperature
  • Crystal Growth
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Cubic Lattices
  • Diseases And Disorders
  • Dislocations
  • Low Temperature
  • Phase Transformations
  • Simulations
  • Transition Temperature
  • Transitions

Readers

  • Computational Modeling and Simulation
  • Materials Science and Engineering.