Microstructure studies

Microstructure studies, by contrast, offer both a means to evaluate the reactivity ratios and also to test the model. The capability to investigate this type of structural detail was virtually nonexistent until the advent of modern instrumentation and even now is limited to sequences of modest length. 

Nuclear magnetic resonance (NMR) spectroscopy is another physical technique which is especially useful for microstructure studies. Because of the sensitivity of this technique to an atom s environment in a molecule, NMR is useful for a variety of microstructural investigations We shall consider the application to copolymers now and to questions of stereoregularity in Sec. 7.11... 

Fig. 7.1. Sketches of periodic MC realizations with 8, 27, and 64 spheres in disordered unit cells. Seven MC realizations with 8 spheres per unit cell, 4 realizations with 27, and 1 with 64 were employed. All microstructures studied had the same inclusion volume fraction of 0.27... 

Zhigang-Rick Li is a research associate at DuPont Central Research and Development, Wilmington, Delaware. He is a member of the Microscopy Society of America, the author or coauthor of more than 70 professional publications and book chapters, and the editor of a book about the microstructural studies of materials. Dr. Li is the recipient of the Sino-France Abroad Study Awards (1982-1986) and the Kazato Research Foundation of Japan Award (1986). 

M. H. Tosten and M. J. Morgan, Microstructural Study of Fusion Welds in 304L and 21Cr-6Ni-9Mn Stainless Steels (U) , WSRC-TR-2004-00456, March, 2005... 

O. Friedrichs, J.C. Sdnchez-Ldpez, C. Lopez-Cartes, M. Dornheim, T. Klassen, R. Bormann, A. Femdndez, Chemical and microstructural study of the oxygen passivation behaviour of nanocrystalline Mg and MgH, Appl. Surf. Sci. 252 (2006) 2334-2345. 

Evidence from drill core and microstructure studies indicate that euhedral, zoned arsenopyrite grains tend to be clustered, and mantled by pyrite (Fig. 4), and their distribution is structurally controlled. These textures are interpreted to represent pressure solution as the main deformation mechanism during Di. This interpretation is supported by serrated pyrite boundaries (Fig. 4) and pyrite-bearing veins. However, locally unstrained euhedral pyrite porphyroblasts overprint Di and D2 structures, implying a late-stage post-D2 growth (Fig. 4). 

CLSM is a relatively new method in food science. Several reviews discussing the application of this technique in microstructural studies of food products have been published recently (Heertje et al., 1987 Blonk and Vanaalst, 1993 Marangoni and Hartel, 1998). These reviews have shown the advantages of using CLSM over conventional techniques for study-... 

Smith, P. P. K. Buseck, P. R. 19816 Graphitic carbon in the Allende meteorite a microstructural study. Science, Wash. 212, 322-324. 

Zhang, Z., Chen, L. S. Zhou, G. W. Low dimensional materials and their microstructures studied by high resolution electron microscopy. Springer Ser. Surf. Sci. 39, 105-169 (2001). 

Heertje, I. 1993. Microstructural studies in fat research. Food Struct. 12, 77-94. 

Desai, N., Nolting, J. 1995. Microstructure studies of reduced-fat cheeses containing fat substitute. In Chemistry of Structure-Function Relationships in Cheese (E.L. Malin, M.H. Tunick, eds.), pp. 295-302, Plenum Press, New York. 

---