Photomicrographs Illustrating the Matrix

Photograph 7-65 Brown, coarsely crystalline aluminate in slowly cooled clinker. Belite crystals exhibit short lamellar extensions into matrix. Coarse raw feed. High maximum temperature, long burning time, slow heating rate. Coal-fired, wet-process kiln, 633 tons/day, 41 MPa. (S A6683) 

Photograph 7-68 Ultrathin section, approximately 10 pm thick, showing tan to beige aluminate (C3A) crystals comprising most of the matrix in this clinker. Round belite crystals, angular alite crystals. (S A6686) 

Transmitted, plane-polarized light Field dimensions = 0.14x0.14 mm 

Photograph 7-70 Strongly pleochroic red ferrite in clinker containing partially consumed chrome-magnesia refractory brick (not shown). Belite with abundant exsolved impurities. Belite crystals in other parts of this clinker nodule are pale green. (S A6688) 

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Figure 5. This figure illustrates the paradox addressed in mechanosensation. (a) An illustration of the small strains that the whole bone experiences, strains that are in the range 0.04 to 0.3 percent and seldom exceed 0.1 percent. The last two panels, (b) Photomicrograph of osteocytes encased in bone matrix (c) Osteocyte in lacuna, illustrate that large strains (1 to 10 percent) on cell membrane are needed to induce biochemical intracellular response in vitro. The paradox in the bone mechanosensing system is that the strains that activate the bone cells are two orders of magnitude larger than the strains to which the whole bone organ is subjected. Previously published in You et al. (2001).

A much more illustrative SEM photomicrograph showing the interconnection of the matrix and the minor phase-oriented, sheet-like structure in melt-blended 40 wt% polypropylene/60 wt% polystyrene blends. (From T. S. Omonov, Crucial Aspects of Phase Morphology Generation and Stabilization in Two- and Three-Phase Polymer Blends Physical, Reactive and Combined Routes of Compatibilization, Ph.D. thesis, Katholieke Universiteit Leuven, Belgium, 2007 under the supervision of C. Harrats and G. Groeninckx.)... 

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