Field emission gun-scanning electron

Transmission electron microscopy (TEM) has traditionally been the mainstay of morphological investigations of polyolefins [8], but recent developments in low voltage high-resolution field emission gun scanning electron microscopy (FEG-SEM) [9] and the advent of atomic force microscopy (AFM) and related near-field techniques [10] have challenged its dominance at the length scales of the order of 10 nm, characteristic of both microdeformation (cavitation, fibrils) and structural components of semicrystalline... 

Figure 12.9 Cross-sectional field emission gun-scanning electron microscopy image of a used membrane electrode assembly. The anode is on the left-hand side, the cathode on the right-hand side. (Adapted from ref. 266, with permission from the Electrochemical Society.)...

The degree of clay dispersion in a PS matrix was characterized by x-ray diffraction analysis (XRD), and electron microscopy that is, scanning [with field emission gun scanning electron microscopy (FEGSEM)] and transmission (TEM) the results are listed in Table 14.1. The XRD scans were obtained at a scan rate 0.3°/min. The specimens were prepared by compression molding at T= 200°C and a compressive... 

FEGSEM field emission gun scanning electron microscopy... 

DDLS depolarized dynamic light scattering FEG-SEM field emission gun scanning electron microscopy SANS small angle neutron scattering... 

CL spectra were collected in a field-emission gun scanning electron microscope (FEG-SEM, Hitachi SE-4300) equipped with a CL device. The CL device consisted of an ellipsoidal mirror and a bundle of optical fibers to collect and to transmit the CL emission into a spectrally resolved monochromator (Jobin-Yvon/Horiba Triax 320,). A 150 gr/mm grating was used throughout the... 

Figure 10.13. Field emission gun scanning electron microscopy (SEM-FEG) of sample presented at Figure 10.12 (microscopy conducted by F. Chariot at CMTC INPG, Grenoble, France). 

An FEZ Sirion field emission gun scanning electron microscope (5 Kv) operating in the secondary electron imaging mode was used to examine the surface of the cry-ofractured membranes. Cryofractured surfaces of the dried and swollen samples were examined. 

Left SKPFM image of AZ91D alloy. Right field emission gun scanning electron microscopy (FEG-SEM) image of the same area. The compositions and Volta potentials of points 1-4 are given in Table 7.5. 

To characterise surface modifications to the samples, two microscopie methods were used Field Emission Gun Scanning Electron Microscopy (FEG-SEM) and AFM. The structure of the irradiated zone was analysed by Low Incidence X-Ray Diffraction (LI-XRD) technique. 

Employing the field emission gun scanning electron microscopy (FEG-SEM) and TEM to study the morphology of the epoxy reinforced with polystyrene-p-polybutadiene-p-poly(methyl methacrylate) block copolymer (SBM), the nanostructured epoxy matrix with disperse micro-scale phase was revealed. Enhanced flexural properties, which were dependent on the composition of blend was obtained. 

Campos et al. [21] studied sisal flber-reinforced TPS and polycaprolactone, both biodegradable pol5miers. Sisal fibers (5% and 10%) were extruded in a twin-screw extruder with TPS/ polycaprolactone (80 20 wt). Films were produced with a single extruder and analyzed by field emission gun scanning electron microscopy, mechanical tests, thermogravimetric analysis, and differential scanning calorimetry. The morphology of the composites with 10% sisal fiber content presented an interface... 

Samples with grooves obtained from multiple scratch testings were coated with gold. The sample surfaces were then studied using field emission gun scanning electronic microscope (FEG-SEM). 

---