Effect of Chemical Composition on the Microstructure and Properties of the Ag-Ga-Ge Alloys
| Autor: | Duško Minić, Aleksandar Markovic, Dragan Manasijević, Aleksandar Djordjevic, Dejan Gurešić, Milena Premović |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Scanning electron microscope Mechanical Engineering Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Isothermal process law.invention Condensed Matter::Materials Science Brinell scale Optical microscope Mechanics of Materials Electrical resistivity and conductivity law 0103 physical sciences General Materials Science 0210 nano-technology Chemical composition Powder diffraction |
| Zdroj: | Journal of Materials Engineering and Performance. 28:3759-3766 |
| ISSN: | 1544-1024 1059-9495 |
| Popis: | This study presents a comparison of thermodynamically calculated phase compositions of Ag-Ga-Ge alloys at fixed temperatures with phase analysis results of alloys annealed at respective temperatures. Three isothermal sections of the Ag-Ga-Ge system at 25, 100 and 300 °C have been extrapolated using optimized thermodynamic parameters from the literature. An experimental analysis of the microstructure was carried out using optical microscopy, scanning electron microscopy and energy-dispersive spectrometry. Results obtained by x-ray powder diffraction methods (identified phases and lattice parameters) were compared with the results of the predicted phase equilibria. Good overall agreement between experimental and calculated values was obtained. The Brinell hardness and electrical conductivity of selected alloys were measured and obtained results were analyzed with respect to their overall compositions and phase constituents. |
| Databáze: | OpenAIRE |
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