Viscosity And Relaxation

1st Edition - August 15, 1986
Editor: D Uhlmann
Language: English
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 1 5 1 0 9 - 2

Glass: Science and Technology, Volume 3: Viscosity and Relaxation provides notable developments in the field of glasses. This book contains seven chapters that specifically tackle… Read more

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Glass: Science and Technology, Volume 3: Viscosity and Relaxation provides notable developments in the field of glasses. This book contains seven chapters that specifically tackle the scientific and engineering aspects of glass viscosity, viscoelasticity, relaxation, and annealing. This book considers first the basis for the analysis of the data produced in relaxation experiments by testing a variety of mechanical models that help to define many of the viscoelastic properties and to establish relationships between them. The subsequent chapters discuss the basic information on the rheology of viscoelastic substances; the atomic transport properties and structural relaxation processes; and the technological aspects of viscosity and its dependence on temperature, stress, time, and composition. This book further explores the physical mechanisms and theories of glass annealing. Separate chapters deal with the inorganic nonmetallic, organic polymers, and metal glasses. This book will be of value to glass scientists and researchers.

Preface

Chapter 1 Viscoelasticity of Glass

List of Symbols

I. Introduction

II. Formulation

III. Elasticity

IV. Shear and Bulk Relaxation

V. Relaxation of the History of Events

VI. Uniaxial and Biaxial Stress Relaxation

VII. A Particular Form of Viscoelastic Equations

VIII. Temperature Variation

IX. The Glass Transition

X. Conclusion

Appendix: Properties of the Laplace Transform

References

Chapter 2 Mechanical Relaxation in Inorganic Glasses

I. Introduction

II. Some Generalities of the Viscoelasticity in Glasses

III. Comments on the Measurement Technique

IV. Influence of Temperature and Composition

V. Influence of Structural Changes

VI. Is an Inorganic Glass a Linear Viscoelastic and Thermorheologically Simple Body?

VII. On Evaluation of Viscoelastic Response of Inorganic Glasses

References

Chapter 3 Rheology and Relaxation in Metal Glasses

I. Introduction

II. Nature of the Glassy State in Metal Alloys

III. Atomic Transport Properties

IV. Structural Relaxation Phenomena

V. Analysis and Models of Relaxation

VI. Concluding Remarks

References

Chapter 4 Technological Aspects of Viscosity

I. Definition, Units, Measurement, and Standards

II. Dependence on Temperature

III. Dependence on Stress

IV. Dependence on Time

V. Dependence on Composition

References

Chapter 5 Annealing of Glass

I. Why is Glass Annealed?

II. Physical Mechanisms Governing the Annealing Process

III. Theories of Annealing

IV. Applications

V. Observations on Annealing Practice

References

Chapter 6 Rheology of Polymeric Fluids

List of Symbols

I. Introduction

II. The Shear Compliance and Modulus

III. The Bulk Compliance and Modulus

IV. Tensile Compliance and Modulus

V. Nonlinear Rheological Behavior

References

Chapter 7 Physical Aging of Polymer Glasses

List of Symbols

I. Introduction

II. The Bulk Creep Compliance

III. Volume Creep and the Shear Compliance and Modulus

IV. Volume Creep and the Tensile Compliance and Modulus

V. Effect of Deformation on Aging

Appendix

References

Index