Oxide Formation on NbAl3, and TiAl Due to Ion Implantation of 18O

Author:

Hanrahan Robert J.,Verink Ellis D.,Withrow Stephen P.,Ristolainen Eero O.

Abstract

ABSTRACTSurface modification by ion implantation of 18O ions was investigated as a technique for altering the high-temperature oxidation of aluminide intermetallic compounds and related alloys. Specimens of NbAl3 and TiAl were implanted to a dose of 1×1018 ions/cm2 at 168 keV. Doses and accelerating energies were calculated to obtain near-stoichiometric concentrations of oxygen. Use of 18O allowed the implanted oxygen profiles to be measured using secondary ion mass spectroscopy (SIMS). The near surface oxides formed were studied using x-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy. Specimens were also examined using x-ray diffraction and SEM. This paper presents results for specimens examined in the as-implanted state. The oxide formed due to implantation is a layer containing a mixture of Nb or Ti and amorphous Al oxides.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

Reference12 articles.

1. 1 Perkins R.A. . “Effects of Alloying, Rapid Solidification, and Surface Kinetics on the High Temperature Environmental Resistance of Niobium” (Final report. Contract # F49620-86-C-0018 Air Force Office of Scientific Research, 1989).

2. Formation of rutile TiO2 induced by high-dose O+ -implantation and its characteristics

3. 12 Joint committee on powder diffraction standards. CD-ROM JCPDS file, 1988.

4. 9 Hanrahan R.J. , Verink E.D. , Withrow S.P. , and Ristolainen E.O. , in Processing and Characterization of Advanced Materials 1993. to be published by TMS, 1994.

5. Synthesis of Al2O3 by ion implantation of oxygen into aluminium

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