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Nanoscale AFM and TEM Observations of Elementary Dislocation Mechanisms

  • Book
  • © 2017

Overview

Authors:
  1. Jozef Veselý

    1. Department of Physics of Materials, Charles University in Prague , Prague 2, Czech Republic

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  • Nominated as an outstanding Ph.D. thesis by the Charles University in Prague, Czech Republic
  • Introduces new 3D modelling of dislocations without recourse to tomography
  • Validates the atomic force microscope as suitable tool for studying dislocations
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xiv
    Download chapter PDF

  2. Introduction

    • Jozef Veselý
    Pages 1-2

  3. Iron Rich Iron-Aluminides

    • Jozef Veselý
    Pages 3-17

  4. Experimental Methods

    • Jozef Veselý
    Pages 19-44

  5. Observations of Dislocations and Other Results

    • Jozef Veselý
    Pages 45-80

  6. Discussion

    • Jozef Veselý
    Pages 81-92

  7. Summary

    • Jozef Veselý
    Pages 93-94

  8. Back Matter

    Pages 95-100
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Keywords

About this book

This thesis addresses elementary dislocation processes occurring in single-crystalline alloys based on Fe-Al, and investigates correspondences between dislocation distribution inside crystals characterized by transmission electron microscopy (TEM) and surface patterns observed using atomic force microscopy (AFM). Fe-Al alloys with different degrees of ordering were prepared and deformed in compression at ambient temperature in-situ inside the AFM device. The evolution of slip line structures was captured in the sequences of AFM images and wavy slip bands, while cross slip at the tip of the slip band and homogeneous fine slip lines were also identified. Further, the thesis develops a technique for constructing 3D representations of dislocations observed by TEM without the prohibitive difficulties of tomography, and creates 3D models of dislocation structures. Generally speaking, the thesis finds good agreement between AFM and TEM observations, confirming the value of AFM as a relevant tool for studying dislocations.

Authors and Affiliations

  • Department of Physics of Materials, Charles University in Prague , Prague 2, Czech Republic

    Jozef Veselý

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