MGM-II Undeformed: The vertical cross-section on the left shows an undeformed specimen, prepared through dry pluviation. The goal of reforming is to obtain specimens that are similar in homogeneity to this specimen.

KSCA Reformed: The vertical cross-section in the middle was reformed using flight-like procedures. The specimen was not agitated during the process. While largely homogeneous, a lower shear cone is still slightly visible. The decreasing diameter with height and the necking in at the top (combined with lower density) are due to 1-g effects and are not expected in microgravity. The horizontal cross sections are circular, indicating a microgravity specimen would be cylindrical.

KSCB Reformed: The vertical cross section on the right was also reformed using flight-like procedures. A small amount of agitation was performed between the two steps. The specimen shows good homogeneity. Again, the decreasing diameter with height and the necking in at the top (combined with lower density) are due to 1-g effects and are not expected in microgravity. The horizontal cross sections are circular, indicating a microgravity specimen would be cylindrical.



return to MGM-III preparations