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Electrical conductivity and hardness of ternary Ge-In-Sb allyos and calculation of the isothermal section at 300 °C

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Published/Copyright: September 21, 2015
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Materials Testing
From the journal Materials Testing Volume 57 Issue 10

Abstract

This publication presents results of experimental investigation and thermodynamic calculation of the ternary Ge-In-Sb system. Isothermal section of the Ge-In-Sb system at 300 °C has been extrapolated using optimized thermodynamic parameters for the constitutive binary systems. Microstructure analysis was carried out by light microscope, scanning electron microscopy with energy dispersive spectrometry and X-ray powder diffraction methods and obtained results were compared with predicted phase equilibria. Hardness of selected alloys annealed at 300 °C was measured using Vickers microhardness test and Brinell hardness test. Electrical conductivity of a number of alloys annealed at 300 °C was experimentally determined. Good overall agreement between experimental and calculated values was obtained.

Kurzfassung

Im vorliegenden Beitrag werden Ergebnisse einer experimentellen Untersuchung und einer thermodynamischen Berechnung des ternären Ge-In-Sb-Systems vorgestellt. Hierzu wurde der isothermische Abschnitt bei 300 °C mittels optimierter thermodynamischer Parameter für zweiphasige Konstitutionssysteme extrapoliert. Die mikrostrukturelle Analyse wurde mittels Lichtmikroskopie, Rasterelektronenmikroskopie und Röntgenpulverdiffraktometrie durchgeführt und die entsprechenden Ergebnisse mit den vorhergesagten Phasengleichgewichten verglichen. Die Härte der ausgewählten und bei 300 °C angelassenen Legierungen wurde mit Hilfe von Vickers- und Brinell-Härtetests gemessen. Die elektrische Leitfähigkeit einer Reihe von Legierungen, die bei 300 °C angelassen wurden, wurde ebenfalls experimentell bestimmt. Hierbei zeigte sich eine gute Übereinstimmung zwischen den berechneten und den experimentell ermittelten Werten.

†Correspondence Address, Dr. Milena Premovic, Faculty of Technical Science, University in Priština, Kneza Milosa 7, 38220 Kosovska Mitrovica, Serbia, E-mail:

Dr. Milena Premović, born 1987, is a teaching assistant in the Department of Technological Engineering, Faculty of Technical Sciences, University of Priština, Serbia. Her research areas are materials, multiphase systems, free-lead solder materials, thermodynamics of alloys, computational thermodynamics and characterization.

Prof. Dr. Duško Minić, born 1965, is a full professor in the Department of Technological Engineering, Faculty of Technical Sciences, University of Priština, Serbia. He graduated in 1993, obtained his MSc degree in 1997 and his PhD degree in 2002. His main fields of interest are defining diagrams (CALPHAD) and characterization of materials (SEM-EDS, DTA, DSC, XRD, mechanical properties, electrical conductivity alloys and optical microscopy).

Ivana Manasijević obtained her MSc degree in the Department of Metallurgical Engineering, Technical Faculty in Bor of the University of Belgrade, Serbia, in 2006. Her research interests include materials thermodynamics and multicomponent metallic systems.

Prof. Dr. Dragana Zivković, born 1965, is a full professor in the Department of Metallurgical Engineering, Technical Faculty in Bor of the University of Belgrade, Serbia. Her main fields of interest are thermodynamics of metallurgical processes synthesis and investigation of advanced metallic materials as well as kinetics of the processes in the multiphase systems in extractive metallurgy.

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Published Online: 2015-09-21
Published in Print: 2015-10-01

© 2014, Carl Hanser Verlag, München

Articles in the same Issue

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Effective thermal conductivity of open-pore metal foams as a function of the base material
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  9. Effect of welding parameters on the mechanical properties of GMA-welded HY-80 steels
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  11. Investigation of using rice husk dust and ulexite in automotive brake pads
  12. Electrical conductivity and hardness of ternary Ge-In-Sb allyos and calculation of the isothermal section at 300 °C
  13. Surface roughness during the turning process of a 50CrV4 (SAE 6150) steel and ANN based modeling
  14. Mechanical properties, microstructure and toughness assessment of a X70 pipeline steel
  15. Flexing test of HDPE/EPR filled CNT radiated nanocomposites for sport shoe soles
  16. Application of asymmetry in plate rolling on the finishing stand of a rolling mill 3600
  17. Test procedure to determine the Paris equation coefficients for crack growth rates exemplified by aluminum alloy 2024-T3
  18. The impact of the output stereometry and absorbent coating on the efficiency of ablative laser texturing of iron alloy 100CrMnSi6-4
  19. Kalender/Calendar
  20. Kalender
https://doi.org/10.3139/120.110790

Articles in the same Issue

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Effective thermal conductivity of open-pore metal foams as a function of the base material
  5. Deflection measurement in low-blow Charpy impact tests
  6. Experimental investigations of the combustion efficiency for fire load calculations
  7. Effects of magnesium chloride polluted soils on underground Q235 steel pipelines
  8. Properties, structure and creep resistance of austenitic steel Super 304H
  9. Effect of welding parameters on the mechanical properties of GMA-welded HY-80 steels
  10. Untersuchung dreidimensionaler struktureller Veränderungen in LiFePO4-Batterien mittels Röntgen-Tomografie
  11. Investigation of using rice husk dust and ulexite in automotive brake pads
  12. Electrical conductivity and hardness of ternary Ge-In-Sb allyos and calculation of the isothermal section at 300 °C
  13. Surface roughness during the turning process of a 50CrV4 (SAE 6150) steel and ANN based modeling
  14. Mechanical properties, microstructure and toughness assessment of a X70 pipeline steel
  15. Flexing test of HDPE/EPR filled CNT radiated nanocomposites for sport shoe soles
  16. Application of asymmetry in plate rolling on the finishing stand of a rolling mill 3600
  17. Test procedure to determine the Paris equation coefficients for crack growth rates exemplified by aluminum alloy 2024-T3
  18. The impact of the output stereometry and absorbent coating on the efficiency of ablative laser texturing of iron alloy 100CrMnSi6-4
  19. Kalender/Calendar
  20. Kalender
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