Effect of Crystal Structure on

Cubic crystals like MgO are isotropic because they have uniform thermal expansion along the three crystallographic axes. Single crystals of noncubic structures are 

FIGURE 34.12 Thermal expansion coefficients versus temperature tor some ceramic oxides. 

TABLE 34.10 Thermal Expansion Coefficients for Some Anisotropic Crystals (ppm/°C)  

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An overview of the effect of crystal structure on color application properties of organic pigments was published [7]. 

This section will discuss some important concepts from coloristic practice and the optical properties of pigmented systems. Space considerations permit a treatment of only the most vital concepts. The reader must consult the literature for further details and accounts of special problems [1], A review on the effect of crystal structure on color application properties was published [2],... 

Chemical crystallography is the study of the principles of chemistry behind crystals and their use in deseribing strueture-property relations in solids. The prineiples that govern the assembly of crystal and glass structures are deseribed, models of many of the teehnologically important erystal struetures are studied, and the effect of crystal structure on the various fundamental meehanisms responsible for many physical properties are discussed. This new book presents and reviews data on the coordination chemistry of several metal complexes with dipicolinic acid and the erystal structure of some antimalarial metal complexes. 

Hunger, K. (1999). The effect of crystal structure on color application properties of organic pigments. Rev. Prog. Coloration and Related Topics, 29,11-84. [258,259, 268]... 

Simon, B., Flandrois, S., Fevrier-Bouvier, A., and Biensan, P. (1998). Hexagonal vs rhombohedral graphite the effect of crystal structure on electrochemical intercalation of lithium ions. Mol. Cryst. Liq. Cryst., 310, 333—40. 

In the preceding part of this paper the predominance of the "periodic effect on HDS by sulfide catalysts was described. Because periodicity dominates, crystal structure is of secondary importance. However, in this section we briefly examine the effect of crystal structure on the catalytic properties of the transition metal sulfides. In the case of catalysts such as M0S2 and WS2, the most industrially important catalysts, the effect of crystal structure is quite pronounced. An understanding of the effect of crystal structure in these catalysts is essential to optimizing their catalytic properties for a given application. 

Some Effects of Crystal Structure on Production of Radicals in Irradiated Organic Crystals... 

We report here some observations on irradiated metal salts of acetic acid which suggest that changing the crystal structure by changing the number of molecules of water of crystallization may lead to quite different stable radicals at 77 °K. It is hoped that further studies of the effects of crystal structure on the nature of the free radicals obtained on irradiation may aid in choosing conditions under which a given desired radical might be stable. 

Healy, T.W., Herring, A.P. and Fuerstenau, D.W. (1 966) The effect of crystal structure on the surface properties of a series of manganese dioxides. Journal of Colloid and Interface Science 21, 435-444. 

Effect of crystal structure on the composition of the primary gaseous products Qualitative 10... 

Chance, B. Ravilly, A. Rumen. N.J. Reaction kinetics of a crystalline hemoprotein An effect of crystal structure on reactivity of fei-rimyoglobin. J. Mol. Biol. 1966. 17. 525-534. 

Nishida, H. and Tokiwa, Y. (1993) Effects of higher-order structure of poly(3-hydroxybiityrate) on its biodegradation. II. effects of crystal structure on microbial degradation. /. Environmental Polymer Degradation, 1, 65-80. 

Nishida, H., Tokiwa, Y. Effects of Higher-Order Structure of Poly(3- hydroxybutyrate) on its Biodegradation. II. Effects of Crystal Structure on Microbial Degradation, Journal of Environmental Polymer Degradation, 1 (1993), p. 65 - 80... 

Jiang, X. L., Liu, T., Xu, Z. M., Zhao, L., Hu, G. H., and Yuan, W. K. 2009. Effects of crystal structure on the foaming of isotactic polypropylene using supercritical carbon dioxide as a foaming agent. Journal of Supercritical Fluids 48 167-175. 

The theory of the effect of crystal structure on k is still in a very rudimentary state. It is generally observed that the larger the number of optical branches in the phonon spectrum, the lower the thermal conductivity. In garnets, there are 80 atoms in the primitive unit cells, and there are 97 optical modes at the zone center (Hurrell et al., 1%8). The combination of infrared and Raman studies has... 

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