Segregation of yttrium induces the formation of Y0.25Zr0.75O2-x and Y0.5Zr0
.5O2-y microdomains, with L1(2)- and L1(0)-like ordered structures, in ZrO2
-6mol%Y2O3 ceramics in both the sintered and annealed states. The compositi
ons of precipitates such as (chi L), (chi S), (chi SS), and small precipita
tes formed inside XL, in Cu-11.88Al-5.06Ni-1.63Mn-0.96Ti (wt.%) shape memor
y alloys have been determined. Under electron beam irradiation, four types
of dynamic behavior of the G.P. zones were observed in the Al-6.58Zn-2.33Mg
-2.40Cu (wt.%) alloy. The G.P. zone and "G.P. zone-like" defect structures
were also distinguished. Lattice distortion profile in the GaAs/InxGa1-xAs
superlattice and two-dimensional lattice distortion around a 60 degrees dis
location core in the InAs(x)P(1-)x/InP superlattice were determined. (C) El
sevier Science Inc., 2000. All rights reserved.