Metastable phases formation in Cu-Nb films by ion-beam-assisted deposition

Authors
Zeng, F Zhao, B Pan, F
Citation
F. Zeng et al., Metastable phases formation in Cu-Nb films by ion-beam-assisted deposition, NUCL INST B, 183(3-4), 2001, pp. 311-317
Citations number
16
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
183
Issue
3-4
Year of publication
2001
Pages
311 - 317
Database
ISI
SICI code
0168-583X(200110)183:3-4<311:MPFICF>2.0.ZU;2-7
Abstract
The Cu-Nb alloy films with positive heat of mixing were prepared by ion-bea m-assisted deposition (IBAD) technique. A new Nb-rich fec phase and an amor phous phase, with composition range around 65-75%, Nb fraction, were obtain ed in Cu-Nb films deposited under Ar+ ion bombardments with energy below 7 keV. The supersaturated bee phase was also formed in Cu20Nb80 films by IBAD . The formation mechanism of metastable phases in Cu-Nb system is discussed in terms of the procedure far from equilibrium and compared with that in F e-Zr system by IBAD, (C) 2001 Elsevier Science B.V. All rights reserved.