Advanced Materials for Electromagnetic Shielding (eBook, ePUB)

Fundamentals, Properties, and Applications
Redaktion: Jaroszewski, Maciej; Rane, Ajay V.; Thomas, Sabu

• Format: ePub

Produktbeschreibung

A comprehensive review of the field of materials that shield people and sensitive electronic devices from electromagnetic fields Advanced Materials for Electromagnetic Shielding offers a thorough review of the most recent advances in the processing and characterization of the electromagnetic shielding materials. In this groundbreaking book, the authors--noted experts in the field--discuss the fundamentals of shielding theory as well as the practice of electromagnetic field measuring techniques and systems. They also explore applications of shielding materials used as absorbers of electromagnetic radiation, or as magnetic shields and explore coverage of new advanced materials for EMI shielding in aerospace applications. In addition, the text contains methods of preparation and applicability of metal foams. This comprehensive text examines the influence of technology on the micro-and macrostructure of polymers enabling their use in screening technology, technologies of shielding materials based on textiles, and analyses of its effectiveness in screening. The book also details the method of producing nanowires and their applications in EM shielding. This important resource: * Explores the burgeoning market of electromagnetic shielding materials as we create, depend upon, and are exposed to more electronic devices than ever * Addresses the most comprehensive issues relating to electromagnetic fields * Contains information on the manufacturing, characterization methods, and properties of materials used to protect against them * Discusses the important characterization techniques compared with one another, thus allowing scientists to select the best approach to a problem Written for materials scientists, electrical and electronics engineers, physicists, and industrial researchers, Advanced Materials for Electromagnetic Shielding explores all aspects in the area of electromagnetic shielding materials and examines the current state-of-the-art and new challenges in this rapidly growing area.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 464
• Erscheinungstermin: 29. November 2018
• Englisch
• ISBN-13: 9781119128632
• Artikelnr.: 56980454

Autorenporträt

MACIEJ JAROSZEWSKI, PHD, is an Assistant Professor, Faculty of Electrical Engineering, and Head of the High Voltage Laboratory at Wroc aw University of Science and Technology, in Wroc aw, Poland. SABU THOMAS, PHD, is the Pro-Vice Chancellor of Mahatma Gandhi University and the Founder Director and Professor of the International and Interuniversity Centre for Nanoscience and Nanotechnology. AJAY V. RANE is a doctoral research fellow, at Durban University of Technology in the Composites Research Group.

Inhaltsangabe

List of Contributors xv

1 EMI Shielding Fundamentals 1
M. K. Aswathi, Ajay V. Rane , A. R. Ajitha, Sabu Thomas, and Maciej Jaroszewski

1.1 Fundamentals of EMI Shielding Theory 1

1.2 Materials for EMI Shielding 3

1.3 Mechanism of EM Shielding Materials 3

References 8

2 EM Noise and Its Impact on Human Health and Safety 11
Halina AnioBczyk

2.1 Introduction 11

2.2 Impact of Non-ionizing EMFs on Humans 13

2.3 Overview of Most Common Sources of EMFs in the Occupational and Residential Modern Human Environment 16

2.4 Protection Against EMFs in European and International Law 19

2.5 Assessment of the Level of EMFs in the Workplaces 22

2.6 Assessment of EMF Levels in Inhabited Area 25

2.7 Assessment of the Level of EMF From Hi-tech Equipment for Personal Use 26

2.8 Needs and Possibilities of Shielding to Reduce the Exposure to EMF 29

2.9 Summary 30

References 31

3 Electromagnetic Field Sensors 35
Vishnu Priya Murali, Jickson Joseph, and Kostya (Ken) Ostrikov

3.1 Introduction 36

3.2 How are EMFs Produced? 36

3.3 Electromagnetic Field Measurements 38

3.4 Conclusion 56

References 56

4 Shielding Efficiency Measuring Methods and Systems 61
Saju Daniel and Sabu Thomas

4.1 Introduction 62

4.2 Calculation of Electromagnetic Shielding Effectiveness 65

4.3 Effect of Various Parameters on Electromagnetic Shielding Effectiveness 69

4.4 Types of EMI Shielding Effectiveness Tests 71

4.5 Shielding Effectiveness Measurement Methods and Systems 73

4.6 Transfer Impedance of Coaxial Cable 84

4.6.1 Measurement of Transfer Impedance of Coaxial Cable 84

4.7 Measurement of Transfer Impedance of Conductive Gasket 85

4.8 Summary 86

References 86

5 Electrical Characterization of Shielding Materials 89
B. J. Madhu

5.1 Introduction 89

5.2 Basics of Electrostatics 89

5.4 Electric Fields in Materials 98

5.4.1 Dielectrics 98

5.4.2 Polarization 98

5.5 Dielectric Properties 101

References 105

6 Magnetic Field Shielding 109
Qiang Zhang

6.1 Introduction 109

6.2 Theories of Magnetic Field Shielding 110

6.3 Standard Shielding Materials 116

6.4 Multilayer Ferromagnetic Matrix Composite Materials 121

6.5 Sandwich Composite/Structure Shielding System 134

6.5.1 Fe/Fe-Al Alloy/Fe Sandwich Composite 135

6.6 Summary 143

References 144

7 Recent Progress in Electromagnetic Absorbing Materials 147
Raghvendra Kumar Mishra, Aastha Dutta, Priyanka Mishra, and Sabu Thomas

7.1 Introduction 147

7.2 Core- Shell Structured Electromagnetic Absorbing Materials 151

7.3 CNM- Based Electromagnetic Absorbing Material 153

7.4 Graphene Based Polymer Composites for EMI Shielding 158

7.5 Challenges and Prospect 160

References 160

8 Flexible and Transparent EMI Shielding Materials 167
Bishakha Ray, Saurabh Parmar, and Suwarna Datar

8.1 Introduction 167

8.2 Theory of Transparent EMI Shielding 168

8.3 Transparent Thin Films for EMI Shielding 169

8.4 Nanocarbon Based Flexible, Transparent EMI Shielding Materials 170

8.5 Conducting Polymer-Based Flexible, Transparent EMI Shielding Materials 172

8.6 Nanowire Based Flexible, Transparent EMI Shielding Materials 172

8.7 Conclusions 174

References 175

9 Polymer-Based EMI Shielding