Analytical electron microscope study of eight ataxites

Details Analytical electron microscope study of eight ataxites Analytical electron microscope study of eight ataxites

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.2461n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Dec. 1982, p. 2461-2469.

Computer Science

1

Ataxite, Electron Microscopy, Fine Structure, Photomicrography, Martensite, Microstructure, Nickel, Widmanstatten Structure

Scientific paper

Optical and electron optical (SEM, TEM, AEM) techniques were employed to investigate the fine structure of eight ataxite-iron meteorites. Structural studies indicated that the ataxites can be divided into two groups: a Widmanstaetten decomposition group and a martensite decomposition group. The Widmanstaetten decomposition group has a Type I plessite microstructure and the central taenite regions contain highly dislocated lath martensite. The steep M shaped Ni gradients in the taenite are consistent with the fast cooling rates, of not less than 500 C/my, observed for this group. The martensite decomposition group has a Type III plessite microstructure and contains all the chemical group IVB ataxites. The maximum taenite Ni contents vary from 47.5 to 52.7 wt % and are consistent with slow cooling to low temperatures of not greater than 350 C at cooling rates of not greater than 25 C/my.

Affiliated with

Also associated with

No associations

Rating

Analytical electron microscope study of eight ataxites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analytical electron microscope study of eight ataxites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytical electron microscope study of eight ataxites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-929121