The effect of oxygen on phase formation in Al/Nb diffusion couples
- 15 April 1990
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (8) , 3780-3784
- https://doi.org/10.1063/1.345023
Abstract
The effect of an aluminum oxide layer at the interface of Al/Nb on phase formation in thin-film binary diffusion couples was studied. Al/Nb bilayers with or without aluminum oxide at the interface were prepared by electron-beam evaporation. The samples were annealed at a constant heating rate of 50 °C/min to temperatures in the range 800–950 °C, and the progress of the reaction was monitored by x-ray diffraction and measurement of the superconducting transition temperature. The presence of an aluminum oxide layer at the interface was found to significantly retard the formation of the superconducting A15 Nb3Al phase.This publication has 14 references indexed in Scilit:
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