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Authors Copy Meteoritics 25, 167—175 (1990)
© Meteoritical Society, 1990. Printed in USA
Electron microscopy study of the iron meteorite Santa Catharina J. ZiwtG,’ D. B.
WILLIAMs,’
J. I. Gou’srnm’
AND
R. S.
CLARKE JR.2
Department of Materials Science and Engineering, L.ehigh University, Whitaker Lab #5, Bethlehem, PA 18015 USA 2Djvision of Meteorites, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 USA (Received 31 July 1989, accepted in revised form 19 March 1990) Abstract—Characterization of the microstructural features of the metal of the Santa Catharina meteorite was performed using a variety of electron optical techniques. Sample USNM#6293 is chemically homogeneous on the micron scale and has a Ni content of 28.2 wt.%. Its microstructure is similar to that of the Twin City ataxite and contains clear taenite II, i.e., fcc taenite with domains of tetrataenite,
© Meteoritical Society, 1990. Printed in USA
Electron microscopy study of the iron meteorite Santa Catharina J. ZiwtG,’ D. B.
WILLIAMs,’
J. I. Gou’srnm’
AND
R. S.
CLARKE JR.2
Department of Materials Science and Engineering, L.ehigh University, Whitaker Lab #5, Bethlehem, PA 18015 USA 2Djvision of Meteorites, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 USA (Received 31 July 1989, accepted in revised form 19 March 1990) Abstract—Characterization of the microstructural features of the metal of the Santa Catharina meteorite was performed using a variety of electron optical techniques. Sample USNM#6293 is chemically homogeneous on the micron scale and has a Ni content of 28.2 wt.%. Its microstructure is similar to that of the Twin City ataxite and contains clear taenite II, i.e., fcc taenite with domains of tetrataenite,
