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Application of X-ray energy dispersive analyses (EDAX) to determine the penetration depth of one oxide phase (NiAl2O4) in a two-phase oxide internal oxidation zone (NiAl2O4 + Al2O3) of a binary alloy (Ni-Al)

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Abstract

EDAX spectrometry was employed as a semiquantitative analytical technique to determine the penetration depth of NiAl 2 O 4 into the internal oxidation zone of Ni-5 wt. % Al alloy oxidized in air at 1273 K. Depth profiles obtained by spot counting Al to Ni K α peak intensities demonstrated that a sharp NiAl 2 O 4 -Al 2 O 3 phase boundary exists in this internal oxidation zone at a normalized fractional depth which can be determined to an accuracy of 0.70±0.05. X-ray reflection diffraction analyses and color examination of chemical deep-etched tapered cross sections substantiated these results.

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Elrefaie, F.A., Smeltzer, W.W. Application of X-ray energy dispersive analyses (EDAX) to determine the penetration depth of one oxide phase (NiAl2O4) in a two-phase oxide internal oxidation zone (NiAl2O4 + Al2O3) of a binary alloy (Ni-Al). Oxid Met 17, 407–413 (1982). https://doi.org/10.1007/BF00742120

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  • DOI: https://doi.org/10.1007/BF00742120

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