Kinetic Processes in Materials |
3.21 Spring 2001 |
S. M. Allen and W. C. Carter |
Department of Materials Science and Engineering |
Massachusetts Institute of Technology |
77 Massachusetts Ave. |
Cambridge, MA 02139 |
Exercise 6.1
Please complete problem 14.1 from KPIM.
Exercise 6.2
Please complete problem 14.2 from KPIM.
Exercise 6.3
Please complete problem 14.4 from KPIM.
Exercise 6.4
From the superimposed electron micrographs of Park and Allen (Lecture
22, p. 129), calculate
an estimate (with an upper an lower bound) for the antiphase boundary
(APB) mobility assuming an isotropic interfacial tension of 1
mJ/m. In addition, estimate the time at which the cylindrical
APB near the center of the image will disappear. Assume that
for
the first of the two images shown. The second image was taken 62 seconds later.