Chapter 5. Point Defects, Atom Jumps, and Diffusion

  1. Prof. Wolfgang Pfeiler
  1. Wolfgang Püschl3,
  2. Hiroshi Numakura1,† and
  3. Prof. Wolfgang Pfeiler3

Published Online: 20 SEP 2007

DOI: 10.1002/9783527614196.ch5

Alloy Physics: A Comprehensive Reference

Alloy Physics: A Comprehensive Reference

How to Cite

Püschl, W., Numakura, H. and Pfeiler, W. (2007) Point Defects, Atom Jumps, and Diffusion, in Alloy Physics: A Comprehensive Reference (ed W. Pfeiler), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527614196.ch5

Editor Information

  1. University of Vienna, Faculty of Physics, Dynamics of Condensed Systems, Strudlhofgasse 4, 1090 Vienna, Austria

Author Information

  1. 1

    Kyoto University, Department of Materials Science and Engineering, Yoshida Hon-machi, Sakyo-ku, Kyoto 606-8501, Japan

  2. 3

    University of Vienna, Faculty of Physics, Dynamics of Condensed Systems, Strudlhofgasse 4, 1090 Vienna, Austria

  1. Osaka Prefecture University, Department of Materials Science, Gakuen-cho 1-1, Naka-ku, Sakai 599-8531, Japan

Publication History

  1. Published Online: 20 SEP 2007
  2. Published Print: 11 JUL 2007

ISBN Information

Print ISBN: 9783527313211

Online ISBN: 9783527614196

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Keywords:

  • alloy physics;
  • point defects;
  • atom jumps;
  • diffusion;
  • defect migration;
  • statistical methods;
  • macroscopic diffusion

Summary

This chapter contains sections titled:

  • Point Defects

    • A Brief Overview

      • Types of Point Defects

      • Formation of Equilibrium and Nonequilibrium Defects

      • Mobility

      • Experimental Techniques

    • Point Defects in Pure Metals and Dilute Alloys

      • Vacancies

      • Self-Interstitial Atoms

      • Solute Atoms

    • Point Defects in Ordered Alloys

      • Point Defects and Properties of the Material

      • Statistical Thermodynamics

      • Equilibrium Concentrations – Examples

      • Abundant Vacancies in some Intermetallic Compounds

  • Defect Migration: Microscopic Diffusion

    • The Single Atom Jump

      • Transition State Theory

      • Alternative Methods

    • Solid Solutions

      • Random Walk

      • Correlated Walk – the Interaction of Defect and Atom

      • Diffusion Walk with Chemical Driving Force

      • Diffusion Walk in an Inhomogeneous Crystal

    • Atom Migration in Ordered Alloys

      • Experimental Approach to Atom Kinetics in Ordered Alloys

      • Jumps Within and Between Sublattices

      • Jump Cycles and Cooperative Atom Jumps

  • Statistical Methods: from Single Jump to Configuration Changes

    • Master Equation Method

    • Continuum Approaches to Microscopic Diffusion and their Interrelationship with Atom Jump Statistics

    • Path Probability Method

    • Monte Carlo Simulation Method

  • Macroscopic Diffusion

    • Formal Description

      • Fick's Laws

      • Nonreciprocal Diffusion, the Kirkendall Effect

      • Nonideal Solutions

    • Phase Transformations as Diffusion Phenomena

      • Spinodal Decomposition

      • Nucleation, Growth, Coarsening

    • Enhanced Diffusion Paths

      • Dislocation-Core Diffusion

      • Grain-Boundary Diffusion

      • Diffusion along Interfaces and Surfaces

  • Outlook

  • References