Defect Structure in Nanomaterials

Defect Structure in Nanomaterials

1st Edition - June 1, 2012

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  • Author: J Gubicza
  • eBook ISBN: 9780857096142
  • Paperback ISBN: 9780081016602

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Nanomaterials exhibit unique mechanical and physical properties compared to their coarse-grained counterparts, and are consequently a major focus of current scientific research. Defect structure in nanomaterials provides a detailed overview of the processing methods, defect structure and defect-related mechanical and physical properties of a wide range of nanomaterials. The book begins with a review of the production methods of nanomaterials, including severe plastic deformation, powder metallurgy and electrodeposition. The lattice defect structures formed during the synthesis of nanomaterials are characterised in detail. Special attention is paid to the lattice defects in low stacking fault energy nanomaterials and metal – carbon nanotube composites. Topics covered in the second part of the book include a discussion of the thermal stability of defect structure in nanomaterials and a study of the influence of lattice defects on mechanical and hydrogen storage properties.

Key Features

  • Gives in-depth, physically based explanations for the relationships between the defect structure and mechanical properties of nanomaterials
  • Covers a wide range of nanomaterials including metals; alloys; ceramics; diamond; carbon nanotubes and their composites
  • Provides a detailed characterization of the lattice defect structure in nanomaterials


Materials scientists and in the field of nanomaterials.

Table of Contents

  • List of figures

    List of tables


    About the author

    Chapter 1: Processing methods for nanomaterials


    1.1 Processing of bulk nanomaterials by severe plastic deformation

    1.2 Processing of nanomaterials by powder metallurgy

    1.3 Production of nanomaterials by electrodeposition

    1.4 Nanocrystallisation of bulk amorphous alloys

    Chapter 2: Defect structure in bulk nanomaterials processed by severe plastic deformation


    2.1 Evolution of dislocation structure and grain size during SPD-processing

    2.2 Comparison of defect structures formed by different routes of bulk SPD

    2.3 Maximum dislocation density and minimum grain size achievable by SPD of bulk metallic materials

    2.4 Excess vacancy concentration due to SPD

    Chapter 3: Defect structure in low stacking fault energy nanomaterialsm


    3.1 Effect of low stacking fault energy on cross-slip and climb of dislocations

    3.2 Defect structure developed in SPD-processed low stacking fault energy pure Ag

    3.3 Effect of low stacking fault energy on defect structure in ultrafine-grained alloys

    3.4 Grain-refinement mechanisms in low stacking fault energy alloys

    Chapter 4: Defects in nanomaterials processed by powder metallurgy


    4.1 Development of defect structure during milling

    4.2 Defect structure in nanopowders produced by bottom-up approaches

    4.3 Effect of consolidation conditions on microstructure of sintered metals

    4.4 Defect structure in metals sintered from blends of powders with different particle sizes

    4.5 Evolution of microstructure during consolidation of diamond and ceramic nanopowders

    Chapter 5: Correlation between defect structure and mechanical properties of nanocrystalline materials


    5.1 Effect of grain size on deformation mechanisms in fcc and hcp nanomaterials

    5.2 Breakdown of Hall-Petch behaviour in nanomaterials

    5.3 Correlation between dislocation structure and yield strength of ultrafine-grained fcc metals and alloys processed by severe plastic deformation

    5.4 Defect structure and ductility of nanomaterials

    5.5 Influence of sintering conditions on strength and ductility of consolidated nanomaterials

    Mechanical behaviour of materials sintered from blends of powders with different grain sizes

    Chapter 6: Defect structure and mechanical properties of metal matrix-carbon nanotube composites


    6.1 Processing of metal matrix- carbon nanotube composites

    6.2 Morphology of CNTs and porosity in nanotube composites

    6.3 Defect structure of metal-CNT composites

    6.4 Correlation between defect structure and mechanical properties

    Chapter 7: Thermal stability of defect structures in nanomaterials


    7.1 High-temperature thermal stability of nanomaterials

    7.2 Stability of nanostructured Cu during storage at room temperature

    7.3 Self-annealing in nanostructured silver: the significance of a very low stacking fault energy

    Chapter 8: Relationship between microstructure and hydrogen storage properties of nanomaterials


    8.1 Fundamentals of hydrogen storage in solid state materials

    8.2 Microstructure and hydrogen storage in nanomaterials processed by severe plastic deformation

    8.3 Change of defect structure during dehydrogenation-hydrogenation cycles

    8.4 Effect of defects on hydrogen storage properties of carbon nanotubes

    Appendix: characterisation of defect structure by x-ray diffraction line profile analysis


Product details

  • No. of pages: 388
  • Language: English
  • Copyright: © Woodhead Publishing 2012
  • Published: June 1, 2012
  • Imprint: Woodhead Publishing
  • eBook ISBN: 9780857096142
  • Paperback ISBN: 9780081016602

About the Author

J Gubicza

Jenő Gubicza is a Professor at Eotvos Lorand University in Budapest, Hungary. He received his PhD and Dr.habil degrees in 1997 and 2005, respectively. Prof. Gubicza’s main research field is the study of microstructure of nanomaterials. He has published two books entitled „Defect structure in nanomaterials” and „X-ray line profile analysis in materials science” in 2012 and 2014, respectively. Prof. Gubicza was awarded the scientific title of Doctor of the Hungarian Academy of Sciences, the Schmid Rezso Prize of Roland Eotvos Physical Society and the Bolyai-plaquette of Hungarian Academy of Sciences. He has published more than 200 papers that have been cited more than 2700 times.

Affiliations and Expertise

Professor, Eotvos Lorand University, Budapest, Hungary

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