Microtopography

Figures 6 and 8 the changes were approximately 65 % for Si" " and over 250 % for Different ions can have yields affected in opposite directions, as shown by the two species in Figure 8. Other materials, such as GaAs, have also shown significant changes in ion yield that have been correlated with microtopography formation.

In analyzing the kinetics of surface reactions, it will be illustrated that many of these processes are rate-controlled at the surface (and not by transport). Thus, the surface structure (the surface speciation and its microtopography) determine the kinetics. Heterogeneous kinetics is often not more difficult than the kinetics in homogeneous systems as will be shown, rate laws should be written in terms of concentrations of surface species. 

Johnsson, P.A. Eggleston, C.M. Hochella, M.E. (1991) Imaging molecular scale structure and microtopography of hematite with the atomic force microscope. Am. Min. 76 1442-1445... 

According to the above developed considerations, surfaces can be described as a mosaic-like structure of which individual elements contribute locally and specifically to their residual binding capacity and their electrical potential. The individual characteristics of these elements and their microtopography determine, via a first series of interactions with water molecules and small solutes, which plasma... 

Young, R. D. (1971). Surface microtopography. Physics Today, November 1971,... 

Bosbach, D. Enders, M. 1998. Microtopography of high-calcium fly ash particle surfaces. Advances in Cement Research, 10, 17-23. 

On crystal faces bounding a polyhedral crystal, step patterns resembling the contour lines on a topographic map or striations in one direction are observable depending on the nature of the face. These show the process of crystal growth or dissolution at an atomic level, and are referred to as the surface morphology or surface microtopography. 

I. Sunagawa, Surface microtopography of crystal faces,inMorphoIogyo/CrystoIs,PartA, ed. I. Sunagawa, Dordrecht, D. Reidel, 1987, pp. 321-65... 

Figure 11.6. Characteristics of surface microtopography of crystal faces of calcite.

The characteristics of the surface microtopography of these faces are schematically illustrated in Fig. 11.6. 

S. Tomura, M. Kitamura, and I. Sunagawa, Surface microtopography of metamorphic white micas, Phys. Chem. Min., 5,1979, 65-81... 

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