Journal article
Phase Identification of Cu-In Alloys with 45 and 41.25 at.% In Compositions
Department of Energy Conversion and Storage, Technical University of Denmark1
Fundamental Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark2
National University of Comahue3
Centro Atómico Bariloche4
Comisión Nacional de Energía Atómica5
Universidade de São Paulo6
In this work, the thermal stability of Cu-In alloys with 45.0 and 41.2 at.% In nominal compositions was investigated by differential scanning calorimetry (DSC), scanning electron microscopy, wavelength dispersive spectroscopy, and in-situ synchrotron x-ray powder diffraction (S-PXRD) over a temperature range from 25 up to 400 A degrees C.
The studied samples are mainly composed of a Cu11In9 phase together with minor amounts of the B phase (based on the NiAs-Ni2In type structure) and, in one of the samples, with a minor amount of pure In. No evidence of the Cu10In7 (41.2 at.% In) phase was detected, not even in the sample with 41.2 at.% In nominal overall composition.
The combined use of the S-PXRD and DSC techniques allowed us to identify two phase transitions involving the Cu11In9 phase, one of them corresponding to the reaction at T = 290 A degrees C and the other to the peritectic reaction at T = 311 A degrees C.
| Language: | English |
|---|---|
| Publisher: | Springer US |
| Year: | 2014 |
| Pages: | 2-10 |
| ISSN: | 18637345 and 15477037 |
| Types: | Journal article |
| DOI: | 10.1007/s11669-013-0265-7 |
Alloys CHEMISTRY, CU10IN7 CU11IN9 Copper alloys Copper compounds Cu-In alloys Cu-in alloys DIFFUSION Differential scanning calorimetry HASH(0x3b4edc8) In compositions In-situ synchrotrons Intermetallics MATERIALS METALLURGY Nominal composition Peritectic Phase identification Phase transitions Research SYSTEM Scanning electron microscopy THERMAL stability Temperature range Type structures X ray powder diffraction differential scanning calorimetry (DSC) intermetallic compounds phase transitions
