Abstract
MÖSSBAUER effect and X-ray diffraction measurements have shown that thin lamellae of the Cape York and Toluca meteorites contain the ordered phase Fe–Ni (50–50%) with the structure L10 (refs 1–3). The bulk of these meteorites consists mainly of body centred cubic (b.c.c.) iron–nickel α-phase alloy. We report here Mössbauer spectra, electron microprobes and X-ray measurements which show that in contrast to this, the bulk of the Ni-rich (≈35%) Santa Catharina Ataxite consists of up to 50% Fe–Ni superstructure4.
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References
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DANON, J., SCORZELLI, R., AZEVEDO, I. et al. Iron–nickel 50–50 superstructure in the Santa Catharina meteorite. Nature 277, 283–284 (1979). https://doi.org/10.1038/277283a0
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DOI: https://doi.org/10.1038/277283a0
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