Metal Nanopowders. Production, Characterization, and Energetic Applications

  • ID: 2674254
  • Book
  • 440 Pages
  • John Wiley and Sons Ltd
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Written with both postgraduate students and researchers in academia and industry in mind, this reference covers the chemistry behind metal nanopowders, including production, characterization, oxidation and combustion. The contributions from renowned international scientists working in the field detail applications in technologies, scale–up processes and safety aspects surrounding handling and storage, showing how versatile these materials can be.

Contains a Foreword by Prof. Dr.–Ing. George Manelis, Institute of Problems of Chemical Physics, Russian Academy of Science, Chernogolovka, Russia and Prof. Dr.–Ing. Hiltmar Schubert, Fraunhofer Institute of Chemical Technology, Pfinztal, Germany.

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Foreword

Introduction

ESTIMATION OF THERMODYNAMIC DATA OF METALLIC NANOPARTICLES BASED ON BULK VALUES

Introduction

Thermodynamic Background

Size–Dependent Materials Data of Nanoparticles

Comparison of Experimental and Calculated Melting Temperatures

Comparision with Data for the Entropy of Melting

Discusson of the Results

Conclusions

Appendix

NUMERICAL SIMULATION OF INDIVIDUAL METALLIC NANOPARTICLES

Introduction

Molecular Dynamics Simulation

Size–Dependent Properties

Sintering Study of Two Nanoparticles

Oxidation of Nanoparticles in the Presence of Oxygen

Heating and Cooling of a Core–Shell Structured Particle

Chapter Summary

ELECTROEXPLOSIVE NANOMETALS

Introduction

Electrical Explosion of Wires Technology for Nanometals Production

Conclusion

METAL NANOPOWDERS PRODUCTION

Introduction

EEW Method of Nanopowder Production

Recondensation NP–Producing Methods: Plasma–Based Technology

Characteristics of Al Nanopowders

Nanopowder Chemical Passivation

Microencapsulation of Al Nanoparticles

The Process of Producing Nanopowders of Aluminum by Plasma–Based Technology

CHARACTERIZATION OF METALLIC NANOPARTICLE AGGLOMERATES

Introduction

Description of the Structure of Nanoparticle Agglomerates

Experimental Techniques to Characterize the Agglomerate Structure

Mechanical Stability

Thermal Stability

Rate–Limiting Steps: Gas Transport versus Reaction Velocity

Conclusions

PASSIVATION OF METAL NANOPOWDERS

Introduction

Theoretical and Experimental Background

Characteristics of the Passivated Particles

Conclusion

SAFETY ASPECTS OF METAL NANOPOWDERS

Introduction

Some Basic Phenomena of Oxidation of Nanometal Particles in Air

Determination of Fire Hazards of Nanopowders

Sensitivity against Electrostatic Discharge

Ranking of Nanopowders According to Hazard Classification

Demands for Packing

REACTION OF ALUMINUM POWDERS WITH LIQUID WATER AND STEAM

Introduction

Experimental Technique for Studying Reaction Al Powders with Liquid and Gaseous Water

Oxidation of Aluminum Powder in Water Vapor Flow

Nanopowders Passivated with Coatings on the Base of Aluminum Carbide

Study of Al Powder/H2O Slurry Samples Heated Linear in "Open System" by STA

Ultrasound (US) and Chemical Activation of Metal Aluminum Oxidation in Liquid Water

Conclusion

NANOSIZED COBALT CATALYSTS FOR HYDROGEN STORAGE SYSTEMS BASED ON AMMONIA BORANE AND SODIUM BOROHYDRIDE

Introduction

A Study of Nanosized Cobalt Borides by Physicochemical Methods

Conclusions

REACTIVE AND METASTABLE NANOMATERIALS PREPARED BY MECHANICAL MILLING

Introduction

Mechanical Milling Equipment

Process Parameters

Material Characterization

Ignition and Combustion Experiments

Starting Materials

Mechanically Alloyed and Metal–Metal Composite Powders

Reactive Nanocomposite Powders

Conclusions

CHARACTERIZING METAL PARTICLE COMBUSTION IN SITU: NON–EQUILIBRIUM DIAGNOSTICS

Introduction

Ignition and Combustion of Solid Materials

Aluminum Reaction Mechanisms

The Flame Tube

Flame Temperature

Conclusions

CHARACTERIZATION AND COMBUSTION OF ALUMINUM NANOPOWDERS IN ENERGETIC SYSTEMS

Fuels in Energetic Systems: Introduction and Literature Survey

Thermochemical Performance of Energetic Additives

Nanosized Powder Characterization

Mechanical and Rheological Behavior with Nanopowders

Combustion of Nanopowders in Solid Propellants and Fuels

Index

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Alexander Gromov obtained his academic degrees from Bijsk Technologic Institute (1998, Chem.Eng.) and Tomsk Polytechnic University (2000, PhD), before working for Tomsk Polytechnic University (Russia), University of Ulsan (South Korea), Forschungszentrum Karlsruhe and Fraunhofer Institute of Chemical Technology (Germany), Milan Polytechnic University (Italy). He was a visiting professor at the Aerospace Engineering Department at Milan Polytechnic University (Italy), 2011–2013 before obtaining the Humboldt Grant for Experienced Researchers and moving to Nuremberg Technical University George–Simon Ohm (Germany) in 2013. Professor Gromov has authored over 150 scientific publications and several books and has received numerous Russian scientific awards, including the Russian Academy of Science Medal in 2009. He is also a member of the International Award Committee of the "Global Energy Prize".

Ulrich Teipel studied Mechanical Engineering at the University of Applied Science of Münster, Germany, 1977 to 1981, followed by Chemical Engineering and Fluid Mechanics at the Technical University (RWTH) of Aachen, Germany, from 1983 to 1990. From 1991 on, he worked as a Research Scientist at the Fraunhofer Institute of Chemical Technology (ICT), becoming Leader of the research group Particle Technology and Deputy Head of the department Energetic Materials in 1996. Since 2004 he has been a Professor of Particle Technology, Mechanical Process Engineering and Fluidmechanics at the Nuremberg Technical University George–Simon Ohm, Germany. His research focuses on R&D on the product design and characterization of particulate materials. Within the field of Particle Technology he is involved in communition, sieve classification, raw materials, mineral processing, rheology of complex fluids and the characterization of particles and disperse systems. Prof. Teipel is a Member of the German Society of Crystallization and Communition and Classification.

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