E-Book, Englisch, 92 Seiten
Bakker Enthalpies in Alloys
Erscheinungsjahr 1997
ISBN: 978-3-0357-0585-0
Verlag: Trans Tech Publications
Format: PDF
Kopierschutz: 0 - No protection
E-Book, Englisch, 92 Seiten
ISBN: 978-3-0357-0585-0
Verlag: Trans Tech Publications
Format: PDF
Kopierschutz: 0 - No protection
It is the aim of the present book to make the reader familiar with the application of a model developed by Andries Miedema which opened completely new perspectives in materials science. For example, a result that was obtained by a one-month run on a Cray 1 supercomputer turned out to be only a few kilo Joules different from the outcome by Miedema’s model, obtained within a few minutes by use of a pocket calculator.
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In Memoryof Andries Miedema
FOREWORD
PREFACE
CONTENTS
PART I: INTRODUCTION TO THE MODEL
1. The Macroscopic Atom Model; Three Fundamentalquantities
2. Estimateof the Chemical Part of the Formation Enthalpy of a Dilute Random Solidsolution
3. Estimate of the Formation Enthalpy of Anintermetallic Compound
4. Volumeeffects upon Alloying
5. Solid Solubility
6. Some Thermodynamics
7. The Importance of the Structural Term
8. Surfaceenergy and Enthalpy of Atomisation
PART II: APPLICATION OF THE MODEL
1. Application to the Formation and Cohesiveenthalpies of Intermetallic Compounds
2. Application to Solid Solubility
3. Formation Enthalpy of Concentrated Solidsolutions
4. Formationenthalpy of Amorphous Alloys
5. Comparison of the Formation Enthalpy of Theamorphous Alloy with the Formation Enthalpy of the Solid Solution
6. Formationenthalpy of Ternary Alloys
7. Application to Volume Effects upon Alloying
8. Applicationto the Heat of Atomisation. 9. Vacancyformation Enthalpies in Pure Metals and Alloys.
10. Anti-Site Disorder in Ordered Compounds
11. Vacancy Formation in Ordered Intermetallics
12. Anti-Site Disorder versus Triple-Defect Disorderand Schottky Defects F.
13. Crystallisation Temperature of Amorphous Alloys
14. Metal Surfaces
ACKNOWLEDGEMENTS. REFERENCES.
APPENDIX 1.BACKGROUND OF MIEDEMA’S MODEL
2. TABLES
Tablea1. Model Parameters in the Metallicstate
Table A2. Theinterfacial Enthalpy of Two Transition Metals
Table A3. The Interfacial Enthalpy of Anon-Transition Element in a Transition Metal
Table A4. The Interfacial Enthalpy of a Transitionmetal in a Non- Transitionelement
Table A5. Bulk and Shear Moduli of Theelements
Table A6. Surfaceenergies and Vacancy Formation Enthalpies of the Elements
