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Area 4 is most likely a ni2cro4 spinel area 3 and 2

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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 2&3 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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