Cryogenic fractured surfac

Fig. 39 SEM micrographs of the cryogenically fractured surfaces of different PTFE-EPDM composites, showing PTEE morphology and dispersion in EPDM...

Morphological and fractographic inspection of the materials were performed on cryogenic fractured surfaces taken from the central region of tested and untested DDENT specimens, using a Jeol JSM 6400 Scanning Electronic microscope (SEM). 

Fig. 2. SEM micrograph of cryogenic fracture surfaces taken at T (upper) and P (lower) crack propagation. (o,6) PCIO, c,d) PC20 and (e,f) PC30.

Typical SEM micrographs of cryogenically fractured surfaces show an homogeneous distribution of the rubber particles for both DZ and NZ materials (Fig. 3). In Table I are reported the specific surface of the nylon/particle interface and the mean free path within the rubber phase. It appears that the rubber particles are by far finer in the NZ blend even though the number of particles is underestimated for this material due to the presence of very small particles and the poor contrast between the rubber and the nylon. 

Figure 9.13. SEM observation of the cryogenic fracture surface in a composite of plasticized starch reinforced with cellulose fibers (white line = 100 microns) [AVE 01b]...

Figure 4, Scanning electron micrograph of a cryogenic fracture surface of a PA 6/EPM 90/10 binary blend.

Fig. 14. SEM micrograph of cryogenic fracture surface of HDPE/iPP (25/75) extruded binary blend.

Figure 14.16. SEM images of cryogenic fractured surfaces of various HDPE/PA12/YP materials (compositions given in wt%) during the stages of the MFC preparation non-oriented blend after the extruder die (la-6a) slightly oriented blends after the first haul-off unit (lb-6b) MFC UDP, fractured in the direction of the fiber (lc-6c) [64]. AU the images are taken at the same magnification...

Figure 12.10 SEM micrographs of cryogenic fracture surfaces of ENR/NR/PVC ternary blend containing 30% NR (magnification 2000 x).

Scanning electron microscopy (SEM) was carried out on the cryogenic fracture surfaces of the specimens coated by sputtering with gold, using a Leo 14050 VP SEM apparatus equipped with energy dispersive spectroscopy (EDS). 

Figure 1. SEM micrographs of the cryogenic fracture surface (A) and WAXS patterns (B) of as-extruded PET/PP 40/60 blend (a) and PET/PP/C 40/54/6 blend (b), drawn PET/PP 40/60 blend (c) and PET/PP/C 40/54/6 blend (d). Here and further all compositions in wt.%.

SEM micrographs of the cryogenic fracture surface of the as-extruded blends are displayed in Figure 8. As in the previous cases (Figures la and 3a), a rather homogeneous distribution of spherical or elliptical LCP particles in the... 

Figure 31. SEM micrograph of cryogenic fractured surface of carbonyl iron powder feedstock with EVA/beeswax binder. (X 4,500).

The morphologies of blmds sanqtles were checked with a Cambridge S250 scanning electron microscope (SEM). The cryogenically fractured surfaces of the specimens were coated with gold prior to the SEM examination. 

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