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Unformatted text preview: st based on grey levels
Area 5 is most likely Al2O3
Spectrum is similar to Area 4 but for added Al peak and
Ni and Cr peaks may be result of phase overlap in
interaction volume under beam.
Area 4 is most likely a Ni2CrO4 spinel
Area 3 and 2 are most likely the same phase
Need to understand how this phase grows into nodules
Cr peak now higher than Ni but bse intensity less
Need to find reason for lower electron density in Phases
Area 1 is wash coat with strong Zr/Pt/Pd peaks detectable - but
intensity from Area 2 clearly contributing to spectrum
Grey phase at interface between regions 4 and 5 may also be
same as region 2 based on BSE intensity CBEMS 164 – XRD, SEM & Microanalysis: Lecture 14
! 11 Mapping and Spectral Imaging! • Mapping involves acquiring an image and
simultaneously acquiring spectral data and setting
the intensity of a pixel in...
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This note was uploaded on 01/16/2014 for the course CBEMS 164 taught by Professor Porter,j during the Fall '08 term at UC Irvine.
- Fall '08