Scanning electron microscopy photomicrographs

Figure 12.8 Scanning electron microscopy photomicrographs of quiescently coarsened and ice water quenched specimens of impact polypropylene copolymer (hiPP). Magnifications are given above each photomicrograph. (From Reference 28 with permission from John Wiley Sons, Inc.)...

Figure 8.6 Scanning electron microscopy photomicrograph of typical ground talc. 

Typical "thick" cocontinuous phase morphology in melt-blended binary blend. A scanning electron microscopy photomicrograph of a cryosmoothed and chloroform-etched 60 wt% polystyrene/40 wt% polypropylene melt-mixed blend. The etched phase is polystyrene. (From G. Lei, DeveUrpment of Three Phase Morphologies in Reactively Compatihilized Polyamide 6/Polypropylene/Polystyrene Ternary Blends, master s thesis, Katholieke Universiteit Leuven, Belgium, 2004.)... 

Fig. 6.1 Scanning electron microscopy photomicrographs of planktonic (a) and biofilm (b) cells of Staphylococcus spp. evidencing the presence of an extracellular polymeric matrix in biofilms (X15,000 magnification bar = 2 pm)...

FIGURE 12.11 Scanning electron microscopy (SEM) photomicrographs of the tensile fracture surface of the ethylene-propylene-diene monomer (EPDM) rubber-melamine fiber composites. A, before ageing and B, after ageing at 150°C for 48 h. Test specimen is cut in tbe direction parallel to the milling direction. (From Rajeev, R.S., Bhowmick, A.K., De, S.K., Kao, G.J.P., and Bandyopadhyay, S., Polym. Compos., 23, 574, 2002. With permission.)... 

Figure 2.8. Scanning electron microscopy (SEM) photomicrographs of (a) a micro-diffractive optical element mold fabricated by a focused ion beam (FIB) and (b) the transferred optical element on a sol-gel film. [Reprinted with permission from Ref. 98.]... 

Various noncellulosic thln-film-composlte membranes were examined by scanning electron microscopy (SEM). Figure 3 illustrates the type of surface structure and cross-sections that exist in these membranes. Figure 3a shows the surface microporosity of polysulfone support films. Micropores in the film were measured by both SEM and TEM typically pore radii averaged 330 A. Figure 3b is a photomicrograph of a cross-section of a NS-lOO membrane. 

Scanning Electron Microscopy fSEM). An IS1-40 SEM was used to take photomicrographs of cellulose fibers fractured in liquid nitrogen and coated with a gold-palladium alloy. 

Each step of this synthetic procedure was followed by confocal laser and/or scanning electron microscopy (SEM) and the corresponding photomicrographs are shown in Fig. 11.4. 

Pseudomorphs on a bronze Shang Dynasty halberd (ca. 1300 b.c.) were subjected to mineralogical analysis to determine their structure and composition. X-Ray diffraction, scanning electron microscopy, and energy dispersive analysis of x-rays were used in these analyses. Photomicrographs of pseudomorphs also were studied for fiber, yam, and fabric formations that give evidence of textiles. A model describing the process of silk pseudomorph formation was proposed. 

Particle size analysis should be carried out on all batches of salt candidates to establish suitable recrystallization procedures. A rapid assessment of both the particle size and crystal habit can be carried out by Scanning Electron Microscopy (SEM). Laser diffraction techniques can provide a rapid assessment of the particle size distribution using less than lOmg of material. It is also useful to retain a photomicrograph for each batch. 

The morphology of LS was evaluated by optical microscopy (Nikon Diaphot inverted microscope) and scanning electron microscopy observations (Cambridge Stereoscan 360). Microsphere size distributions were determined by photomicrograph analyses, analyzing at least 300 microparticles per sample. 

A scanning electron microscopy study of moulded foam parts was carried out to understand what affect the additives might have on the morphology of the foam cell structure. It is clear from the SEM photomicrographs in Figures 1.27, 1.28 and 1.29 that there is no... 

Further, the techniques of Scanning Electron Microscopy (SEM), Specular Reflectance Infrared Spectroscopy (SRIS), and Electron Spectroscopy for Chemical Analysis (ESCA) have proved complementary in this investigation of the relationships between adherend surfaces and adhesive properties. As SRIS results have shown the presence of adhesive on all fracture samples, ESCA and SEM results further clarified the nature of the fracture surface through the presence or absence of a Ti ESCA spectrum and the observation or lack of observation of the substrate structure in the SEM photomicrographs. It is concluded from the results of the three techniques that for the Set I samples, cohesive failure was noted for 219D2 whereas adhesive failure was noted for 220D3. Cohesive failure was noted for samples lm2-517 and lmp2-516 and adhesive failure was noted for 2m2-515 in Set II. 

Figure 1. Scanning electron photomicrographs of minerals from coals. The minerals were studied and photographed by a Cambridge Stereoscan microscope with an accessory energy-dispersive x-ray spectrometer at the Center for Electron Microscopy, University of Illinois. A. Pyrite framboids from the low-temperature ash of a sample from the DeKoven Coal Member. B. Pyrite cast of plant cells from the low-temperature ash of a sample from the Colchester (No. 2) Coal Member. C. Kaolinite (left) and sphalerite (right) in minerals from a cleat (vertical fracture), Herrin (No. 6) Coal Member. D. Calcite from a cleat in the Herrin (No. 6) Coal Member. E. Kaolinite books from a cleat in the Herrin (No. 6) Coal Member. F. Galena small crystals in the low-temperature ash of a sample from the DeKoven Coal Member.

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