Barsoum MAX Phases

Properties of Machinable Ternary Carbides and Nitrides
1. Auflage 2013
ISBN: 978-3-527-65461-1
Verlag: Wiley-VCH
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 436 Seiten, E-Book

In this comprehensive yet compact monograph, Michel W. Barsoum, one of the pioneers in the field and the leading figure in MAX phase research, summarizes and explains, from both an experimental and a theoretical viewpoint, all the features that are necessary to understand and apply these new materials. The book covers elastic, electrical, thermal, chemical and mechanical properties in different temperature

regimes.

 

By bringing together, in a unifi ed, self-contained manner, all the information on MAX phases hitherto only found scattered in the journal literature, this one-stop resource offers researchers and developers alike an insight into these fascinating materials.

Autoren/Hrsg.

Barsoum, Michel

Barsoum, Michel W.

Inhaltsverzeichnis

INTRODUCTION

Introduction

History of the MAX Phases

 

STRUCTURE, BONDING, AND DEFECTS

Introduction

Atom Coordinates, Stacking Sequences, and Polymorphic Transformations

Lattice Parameters, Bond Lengths, and Interlayer Thicknesses

Theoretical Considerations

To Be or Not to Be

Distortion of Octahedra and Trigonal Prisms

Solid Solutions

Defects

Summary and Conclusions

 

ELASTIC PROPERTIES, RAMAN AND INFRARED SPECTROSCOPY

Introduction

Elastic Constants

Young's Modulus and Shear Modulus

Poisson's Ratios

Bulk Moduli

Extrema in Elastic Properties

Effect of Temperature on Elastic Properties

Raman Spectroscopy

Infrared Spectroscopy

Summary and Conclusions

 

THERMAL PROPERTIES

Introduction

Thermal Conductivities

Atomic Displacement Parameters

Heat Capacities

Thermal Expansion

Thermal Stability

Summary and Conclusions

 

ELECTRONIC, OPTICAL, AND MAGNETIC PROPERTIES

Introduction

Electrical Resistivities, Hall Coefficients, and Magnetoresistances

Seebeck Coefficients, Theta

Optical Properties

Magnetic Properties

Superconducting Properties

Summary and Conclusions

 

OXIDATION AND REACTIVITY WITH OTHER GASES

Introduction

Ti3SiC2

Tin+1AlXn

Solid Solutions between Ti3AlC2 and Ti3SiC2

Cr2AlC

Nb2AlC and (Ti0.5,Nb0.5)2AlC

Ti2SC

V2AlC and (Ti0.5,V0.5)2AlC

Ti3GeC2 and Ti3(Si,Ge)C2

Ta2AlC

Ti2SnC, Nb2SnC, and Hf2SnC

Ti2InC, Zr2InC, (Ti0.5, Hf0.5)2InC, and (Ti0.5,Zr0.5)2InC

Sulfur Dioxide, SO2

Anhydrous Hydrofluoric, HF, Gas

Chlorine Gas

Summary and Conclusions

Appendix

 

CHEMICAL REACTIVITY

Introduction

Diffusivitiy of M and A Atoms

Reactions with Si, C, Metals, and Intermetallics

Reactions with Molten Salts

Reactions with Common Acids and Bases

Summary and Conclusions

 

DISLOCATIONS, KINKING NONLINEAR ELASTICITY, AND DAMPING

Introduction

Dislocations and Their Arrangements

Kink Band Formation in Crystalline Solids

Incipient Kink Bands

Microscale Model for Kinking Nonlinear Elasticity

Experimental Verification of the IKB Model

Effect of Porosity

Experimental Evidence for IKBs

Why Microcracking Cannot Explain Kinking Nonlinear Elasticity

The Preisach - Mayergoyz Model

Damping

Nonlinear Dynamic Effects

Summary and Conclusions

 

MECHANICAL PROPERTIES: AMBIENT TEMPERATURE

Introduction

Response of Quasi-Single Crystals to Compressive Loads

Response of Polycrystalline Samples to Compressive Stresses

Response of Polycrystalline Samples to Shear Stresses

Response of Polycrystalline Samples to Flexure Stresses

Response of Polycrystalline Samples to Tensile Stresses

Hardness

Fracture Toughness and R-Curve Behavior

Fatigue Resistance

Damage Tolerance

Micromechanisms Responsible for High K1c, R-Curve Behavior, and Fatigue Response

Thermal Sock Resistance

Strain Rate Effects

Solid Solution Hardening and Softeing

Machinability

Summary and Conclusions

 

MECHANICAL PROPERTIES: HIGH TEMPERATURES

Introduction

Plastic Anisotropy, Internal Stresses, and Deformation Mechanisms

Creep

Response to Other Stress States

Summary and Conclusions

 

Index

INTRODUCTION

Introduction

History of the MAX Phases

 

STRUCTURE, BONDING, AND DEFECTS

Introduction

Atom Coordinates, Stacking Sequences, and Polymorphic Transformations

Lattice Parameters, Bond Lengths, and Interlayer Thicknesses

Theoretical Considerations

To Be or Not to Be

Distortion of Octahedra and Trigonal Prisms

Solid Solutions

Defects

Summary and Conclusions

 

ELASTIC PROPERTIES, RAMAN AND INFRARED SPECTROSCOPY

Introduction

Elastic Constants

Young's Modulus and Shear Modulus

Poisson's Ratios

Bulk Moduli

Extrema in Elastic Properties

Effect of Temperature on Elastic Properties

Raman Spectroscopy

Infrared Spectroscopy

Summary and Conclusions

 

THERMAL PROPERTIES

Introduction

Thermal Conductivities

Atomic Displacement Parameters

Heat Capacities

Thermal Expansion

Thermal Stability

Summary and Conclusions

 

ELECTRONIC, OPTICAL, AND MAGNETIC PROPERTIES

Introduction

Electrical Resistivities, Hall Coefficients, and Magnetoresistances

Seebeck Coefficients, Theta

Optical Properties

Magnetic Properties

Superconducting Properties

Summary and Conclusions

 

OXIDATION AND REACTIVITY WITH OTHER GASES

Introduction

Ti3SiC2

Tin+1AlXn

Solid Solutions between Ti3AlC2 and Ti3SiC2

Cr2AlC

Nb2AlC and (Ti0.5,Nb0.5)2AlC

Ti2SC

V2AlC and (Ti0.5,V0.5)2AlC

Ti3GeC2 and Ti3(Si,Ge)C2

Ta2AlC

Ti2SnC, Nb2SnC, and Hf2SnC

Ti2InC, Zr2InC, (Ti0.5, Hf0.5)2InC, and (Ti0.5,Zr0.5)2InC

Sulfur Dioxide, SO2

Anhydrous Hydrofluoric, HF, Gas

Chlorine Gas

Summary and Conclusions

Appendix

 

CHEMICAL REACTIVITY

Introduction

Diffusivitiy of M and A Atoms

Reactions with Si, C, Metals, and Intermetallics

Reactions with Molten Salts

Reactions with Common Acids and Bases

Summary and Conclusions

 

DISLOCATIONS, KINKING NONLINEAR ELASTICITY, AND DAMPING

Introduction

Dislocations and Their Arrangements

Kink Band Formation in Crystalline Solids

Incipient Kink Bands

Microscale Model for Kinking Nonlinear Elasticity

Experimental Verification of the IKB Model

Effect of Porosity

Experimental Evidence for IKBs

Why Microcracking Cannot Explain Kinking Nonlinear Elasticity

The Preisach - Mayergoyz Model

Damping

Nonlinear Dynamic Effects

Summary and Conclusions

 

MECHANICAL PROPERTIES: AMBIENT TEMPERATURE

Introduction

Response of Quasi-Single Crystals to Compressive Loads

Response of Polycrystalline Samples to Compressive Stresses

Response of Polycrystalline Samples to Shear Stresses

Response of Polycrystalline Samples to Flexure Stresses

Response of Polycrystalline Samples to Tensile Stresses

Hardness

Fracture Toughness and R-Curve Behavior

Fatigue Resistance

Damage Tolerance

Micromechanisms Responsible for High K1c, R-Curve Behavior, and Fatigue Response

Thermal Sock Resistance

Strain Rate Effects

Solid Solution Hardening and Softeing

Machinability

Summary and Conclusions

 

MECHANICAL PROPERTIES: HIGH TEMPERATURES

Introduction

Plastic Anisotropy, Internal Stresses, and Deformation Mechanisms

Creep

Response to Other Stress States

Summary and Conclusions

 

EPILOGUE

Outstanding Scientific Questions

MAX Phase Potential Applications

Forming Processes and Sintering

Outstanding Technological Issues

Some Final Comments

 

INDEX

Über Autor(innen)

Michel W. Barsoum is Distinguished and Grosvenor-Professor in the Department of Materials Science and Engineering at Drexel

University, USA. His research group was the fi rst to fabricate and fully characterize the MAX phases, an important new class of machinable

ternary carbides and nitrides on which he and his collaborators have published more than 200 papers. He is also the author of a textbook

on the Fundamentals of Ceramics, the leading textbook in the field. Prof. Barsoum was awarded a Humboldt Max Planck Research Award

in 2000 and spent one year at the Max Planck Institute in Stuttgart, Germany. In 2008 - 2009 he spent a sabbatical year at Los Alamos

National Lab as the prestigious Wheatley Scholar. He is a Fellow of the American Ceramic Society and the World Academy of Ceramics.

In addition, Prof. Barsoum is visiting professor at Linkoping University in Sweden. With a h index of close to 50, his work has been highly and

widely cited. He is on ISI's most highly cited authors list. He is the author of the two entries on the MAX phases in the Encyclopedia of

Materials Science and Engineering.