Optical microscopy morphology

X-ray difl raaion (structure grain size preferred orientation stress) Scanning laser microscopy Optical microscopy Oocnl thickness topography nucleation general morphology internal oxidation) l.R. spectroscopy (specialised analysis and applications)... 

Complete characterization of poisoned catalysts, of course, requires much more than chemical analysis. For example, the interaction of poisons with catalyst constituents and with each other has been studied by X-ray diffraction and by electron microscopy, the morphology of the poison deposits by optical methods, the distribution within the catalyst pellets and washcoats by the microprobe, and the distribution of poison on the surface of the active metals by Auger spectroscopy. 

Physical characterization of macromolecular systems strives to determine chemical structure/property relationships. This subfield includes study of thermomechanical performance viscoelastic properties surface properties, adhesion science thermal transitions morphological analysis, including semicrystalline, amorphous, liquid-crystalline, and microphase-separated structures. Structural analysis employs electron microscopy, con-focal microscopy, optical microscopy, x-ray photoelectron spectroscopy, atomic force microscopy, and x-ray and neutron scattering of macromolecular compositions. 

The thickness ho of the PDMS films on top of the PDMS brush, as measured by ellipsometry, was varied in the range of 30-150 nm. All films were obtained by spin-coating dilute heptane solutions directly (Mito the coated substrates. As indicated in Fig. 4, isothermal dewetting of the thin polymer films, i.e., the retraction of a contact line, was followed in real time (0 by optical microscopy. The morphology of the rim was also investigated by atomic force microscopy (AFM). More details on sample preparation and dewetting measurements can be found in [146, 147],... 

Microscopy AU morphological and marker screening utilizes simple light microscopy via a dissecting scope. We use Zeiss Stani SR microscopes. However, any microscope with the capability of translucent illumination and up to 5X objectives would be adequate. Translucent lighting is essential for clear optical inspection of structures of the embryo. 

Keywords chain fold crystal growth, lamella, lamellar thickness distribution, nucleation, secondary crystallization, etching, lamellae detection, small angle X-ray scattering (SAXS), differential scanning calorimetry (DSC), optical microscopy, spherulite, morphology, electron microscopy. 

The objective of this presentation is to show how all types of microscopy—optical and electronic—can be of great value in studying polymeric products with respect to their cement lines, splices, and junctions and to adhesive systems alone prior to fabrication. Numbers will not be generated, but the importance and occurrence of certain morphological characteristics will be stressed. In addition, various specimen preparations I have found useful will be presented. 

Roark S E and Rowlen K L 1993 Atomic force microscopy of thin Ag films. Relationship between morphology and optical properties Chem. Phys. Lett. 212 50... 

Microscopic identification models ate similar to the CMB methods except that additional information is used to distinguish the source of the aerosol. Such chemical or morphological data include particle size and individual particle composition and are often obtained by electron or optical microscopy. 

The various studies of shock-modified powders provide clear indications of the principal characteristics of shock modification. The picture is one in which the powders have been extensively plastically deformed and defect levels are extraordinarily large. The extreme nature of the plastic deformation in these brittle materials is clearly evident in the optical microscopy of spherical alumina [85B01]. In these defect states their solid state reactivities would be expected to achieve values as large as possible in their particular morphologies greatly enhanced solid state reactivity is to be expected. 

The mechanism of formation of morphology structures in iPP-E-plastomers blends via shear-dependent mixing and demixing was investigated by optical microscopy and electron microscopy. A single-phase stmcture is formed under high shear condition in injection machine after injection, namely under zero-shear environments, spinodal decomposition proceeds and leads to the formation of a bicontinuous phase stmcture. The velocity of spinodal decomposition and the phase separation depend on the molecular stmcture of iPP and E-plastomer components. 

Morphology of the blends was studied by both optical microscopy and SEM. It was found that HDPE forms a continuous phase and rubber is dispersed as distinct domains. The 50 50 blend shows finer particle dispersion than other blends. In 25 75 blend both HDPE and rubber form the continuous layer. The morphology is independent of the method of preparation. 

R Evans. Determination of drug particle size and morphology using optical microscopy. Pharm Technol... 

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