Scanning electron microphotographs

Fig. 3.19. Scanning electron microphotograph of buckling failure near the loading nose of a carbon fiber-epoxy matrix short beam shear specimen. After Whitney and Browning (1985).

Fig. 5.20, Scanning electron microphotograph of a tihrillatcd Kevlar 49 fiber. After Kim and Mai (1991b).

Fig, 7.7. Scanning electron microphotographs of fracture surfaces for earbon fiber epoxy matrix composites (a) anil (b) without PVAL coatings (c) and (d) with PVAL coatings on libers. After Kim et al,... 

Fig. 8.3. In-situ scanning electron microphotographs of mode I interlaminar fracture of Hexed T6T145 carbon liber composites containing (a) 1155 unmodifted epoxy matrix, and (b) FIS5 rubber-modified epoxy matrix. Reprinted from Bradley (1989b), with kind permission from Hlsevier Seience-NL, Sarti burger hart straat 25, 1055 KV Amsterdam, Fhc Netherlands,...

Fig. 4 Scanning electron microphotographs of the surfaces of glassy carbon (GC) (a) and graphite epoxy composite (GEC) (b). The same acceleration voltage (10 kV) and the same resolution (100 and 10p.m) were used in both cases. Taken from [97]. Reprinted with permission...

Fig. 5.7 shows scanning electron microphotographs of a TAGN surface before combustion (a) and after quenching (b). The quenched surface is prepared by a rapid pressure decay in the strand burner shown in Appendix B. The quenched sur-... 

Fig. 7.29 Scanning electron microphotographs of quenched AP composite propellant burning surfaces without LiF (a) and with 0.5% LiF (b), obtained by a pressure decay from 2 MPa to 0.1 MPa the width of each photograph is 0.60 mm.

Figure 3. Scanning electron microphotograph of cellulose fabric sample before (A) and after (B) flex abrasion...

Fig. 21.3. (A) Schematic representation of the electrochemical DNA biosensing procedures based on magnetic beads and m-GEB. (B) Scanning electron microphotographs showing the captured magnetic beads on the surface of m-GEC magneto sensor. Resolution (i) 2 pm, (ii) 10 pm, (iii) 50 pm and (iv) 100 pm. Acceleration voltage 10 kV. Number of magnetic beads 1.6 x 106.

The X-ray diffraction output of this ceramic and its microstructure is shown in Figs. 9.7 and 9.8, respectively. The X-ray diffraction pattern does not contain any peaks other than those of MKP and unreacted MgO. Similarly, the scanning electron microphotographs show only crystals of MKP. Thus, unlike other cements such as those formed by ammonium phosphates in which reaction products contain more than one phase, this product is comparatively phase pure. 

Figure 18.2 shows the scanning electron microphotograph of the fractured surface of the sample. Considerable featureless material, possibly amorphous or microcrystalline, is visible. Due to the very fine starter powders used in this material, it is likely that the resulting crystals of magnesium potassium phosphate are also very fine and, hence, are not easily visible in the micrograph. The elongated crystals of calcium silicates are embedded in this amorphous mass. Also notice the crack due to fracture of the material, which is diverted by... 

Fig. 9 Scanning electron microphotograph (300 x) of the composite ion-exchange material (top) and schematic representation of the ion-exchanger beads present in a network of interlaced PTFE (bottom).

Figure 12. Scanning electron microphotographs of generated cellulose membranes.

Figure 19.18 Scanning electron microphotographs [xlOOO] of [a] cotton fiber (control], [b] CHT-MC-treated fibers, [c] CHT-treated fibers [d] CHT-treated and then prolong-boiled cotton fibers, [e] CHT-D4-treated fibers and [f] CHT-D5-treated fibers.

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