Transmission election microscopy

Transmission election microscopy (TEM) was used to further explore the microstructure in each of the three copolymer systems. The 2-methyl resorcinol-PDMSX copolymer was expected to show the greatest degree of microphase... 

X-ray topography is the X-ray analogue of transmission election microscopy and as such provides a map of the strain distribution in a crystal. The theory of image formation is well established and image simulation is thus a powerful means of defect identification. Despite a reputation for being a slow and exacting technique, with modem detector technology and care to match spatial resolution of detector and experiment, it can be a powerful and economical quality-control tool for the semiconductor industry. 

It is interesting to note that, due to its uniform and nearly straight pore structure, planar anodic alumina membranes have been used as the probes for monitoring catalyst deactivation at the single pore level [Nourbaksh et al, 1989a]. The nearly idealized structure is suitable for various surface analysis techniques such as scanning and transmission election microscopy and associated EDX and XPS to be applied to fresh as well as spent catalysts. In the case of hydrotreating of crude-derived heavy oils, catalyst... 

Reimer, E., Transmission Election Microscopy, Springer-Verlag, Berlin, 1984. 

TEM (transmission election microscopy)—an electron beam is passed through a small region of a sample contained within a vacuum. The transmitted electrons are magnified and focused to obtain an image on a scintillation screen or electronic detector. 

Fig. 6.25 a Scanning transmission election microscopy image of MgO-stabilized CO2 sorbents (Ca—md. Mg—cyan), and b pore size distribution. The CO2 sorbent contained a weight ratio of CaO to MgO of 75 25 %. Adapted with the permission from Ref. [82]. Copyright 2005, Americrm Chemical Society... 

He C, Zhao N, Shi C, Li J, Li H. Magnetic properties and transmission election microscopy studies of Ni nanoparticles encapsulated in carbon nanocages and carbon nanotubes. Mater Res BuU 2008 43 2260-5. 

Jin2] Magnetometry, transmission election microscopy 5-9 mass% Co, 27-28 mass% Cr, Fe = bal. 500-640°C... 

Tho] Thomas, G., Some Applications of Transmission Election Microscopy to Phase Transitions , in Diffraction and Imaging Techniques in Material Sciencd , AmeUnckx, S., Gevers, R., Van Landuyt, J. (Eds.), Vol. 1, North-Holland Publ. Comp., Amsterdam, New York-Oxford, 1, 217-249 (1978) (Crys. Structure, Morphology, Review, 46)... 

PU Polyurethane STEM Scanning transmission election microscopy... 

Ibe microstructural differences among the T6, T73, and T76 tempers of these alloys are differences in size and type of precipitate, which changes from predominantly Guinier-Pl ton (GP) zones in T6 tempers to i), the metastable transition form of i)(MyZv, in T73 and T76 tempers. None of these differences can be detected by optical metallography. In fact, even the resolutions possible in transmission election microscopy are insufficient for detomining whetha the precipitation reaction has been adequate to ensure die expected level of resistance to SCC. Fm quality assur-... 

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