Copper-Indium Alloy Transformations

• DOI: 10.1007/s11669-000-0018-2
• Publication Date: 2008-11-22T14:50:17Z
• Authors: Nese Orbey; Robert W. Birkmire; T. W. Fraser Russell; Glover A. Jones
• Keywords: Atmospheric temperature range; Reducing atmosphere

Phase transformations of copper-indium alloy thin films are analyzed by hot-stage x-ray diffraction (XRD) over the temperature range from 30 to 425 °C in controlled ambient. Thin films of Cu/In with a molar ratio of approximately 0.9 were used. In situ experiments were carried out in a reducing hydrogen atmosphere to minimize oxide formation. The as-deposited Cu/In alloy transformed at 150 °C to form Cu11In9. Ramping the temperature to the upper limit of 425 °C revealed an additional transformation at 350 °C to form Cu16In9.