Intermediate segregation region

Figure 4 Morphologies of bulk cylinder-forming diblock copolymers confined within spherical cavities. The model diblock copolymer is at the intermediate segregation region and so the copolymer cylinders can be deformed easily, resulting in the rich morphologies shown. Reproduced with permission from Chen, P. Liang, H. Shi, A.-C. MacromoleculesZOOB, 41, 8938. Copyright 2008, American Chemical Society.

Most wool fibers contain two or even three types of cortical cells that are sometimes segregated into two distinct regions (Figure 1-29) that can be readily observed in cross section [82]. These cell types are called orthocortex, paracortex, and mesocortex. Orthocortical cells contain less matrix between the intermediate filaments and a lower sulfur content ( 3%) para-cortical cells are smaller in diameter, and they have smooth and rounded borders and a high sulfur content (-5%) [83]. 

After calcination of HTT product at 350°C, a large broadening of XRD peaks of almost all components but Al° was observed, apparently caused by further oxidation of composites. For particles of calcined samples, "nucleation" of iron- enriched and Zr -enriched regions observed for the initial sample by TEM was detected as well (Fig.4b). This is accompanied by a large increase of microstrains density. So, apparently, calcination at a high temperature further oxidizes AC causing phase segregation (Fig.4c). Calcination at intermediate temperatures leads to more random distribution of Zr and Fe in AC. The activity of AC molded in alumina without any calcination is lower than that of a mildly calcined sample (Table 2). 

---