Description

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

Readership

Materials scientists and in the field of nanomaterials.

Table of Contents

List of figures

List of tables

Preface

About the author

Chapter 1: Processing methods for nanomaterials

Abstract:

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

Abstract:

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

Abstract:

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

Abstract:

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

Abstract:

5.1 Effect of grain size on deformation mechanism

Details

No. of pages:
388
Language:
English
Copyright:
© 2012
Published:
Imprint:
Woodhead Publishing
Print ISBN:
9780857092069
Electronic ISBN:
9780857096142

About the author

J Gubicza

Jeno Gubicza is an associate professor at Eotvos Lorand University in Budapest, Hungary, Chairman of the Diffraction group of the Roland Eotvos Physical Society and a Member of the Solid State Physics Committee of the Hungarian Academy of Sciences. He received his PhD and Dr.habil degrees at Eotvos Lorand University in 1997 and 2005, respectively. Most recently Gubicza achieved the scientific title of Doctor of the Hungarian Academy of Sciences in 2009. He is an expert in processing, microstructure and mechanical properties of nanomaterials and has published more than 130 papers that have been cited more than 1000 times. Gubicza was previously a Member of the Physics Jury of the Hungarian National Scientific Fund.

Affiliations and Expertise

Eötvös Lorand University, Hungary

Reviews

Serves as a useful reference for academics, materials and physics researchers, materials, mechanical and physics engineers, professional in related industries with nanomaterials and nanotechnology., International Journal of Materials Engineering Innovation