Boundary influence

Chemical Inhomogenities or Compositional Separation. Compositional separation at the grain boundaries influences the magnetic interactions of the individual grains. Deposition parameters such as temperature, substrate material, and the use of a seed layer play an important role. 

The interfacial tension at the metal-electrolyte boundary influences the dissolution of aluminum in the bath [180] and the current and energy efficiency [181]. Thus, a high interfacial tension at the metal-electrolyte boundary reduces the rate of dissolution of aluminum in the bath and increases the current efficiency... 

We shall see later that it is often advantageous to consider the temporal or spatial development of a velocity field in terms of diffusion and convection processes. In this framework, the basic concept of diffusion over a distance -Jvi in a time increment t plays a critical role in helping to determine the extent of boundary influence on the flow. It should be recognized however, that the class of unidirectional flows is a special case in that the direction of diffusion is always at right angles to the direction of motion. In most flows this will not be true, and the influence of the boundary geometry will be propagated by means of momentum transport by both diffusion and convection. 

Boundary influence can be an important factor, yet, as Bancroft2 has pointed out, it fails to explain the cases in which a promoter has a maximum influence at concentrations far below that which gives a maximum extent of interface. 

McPherson, M. B., Boundary influence on the fall velocity of spheres at Reynolds numbers beyond the Stokes range. M.S. Dissertation, State Univ. of Iowa, Iowa City, 1947. 

The key feature is always that phase boundaries move during solid-state reactions. Defects and grain boundaries influence both the mechanisms and the rates of solid-state reactions, but with bulk reactants you do not know where to start. The volume probably changes during... 

The definition of the pore mobility allows us to go on to analyze how the interactions between the pores and the grain boundaries influence the kinetics of grain growth. ThCTe are two cases that can be considered (1) the pore becomes separated from the boundary and (2) the pore remains attached to the boundary. 

V. THE CRYSTAL-LIQUID (KRAFFT) BOUNDARY INFLUENCE OF THIRD COMPONENTS... 

The de Gennes equations have been reexamined by Chen et al. [31], who discussed experimental limitations as boundary influences and finite sample dimensions. Possible error sources are stray light in the detector and inaccurate adjustment of the sample cell, which may lead to systematic errors in the scattering angle. 

Through systematic investigations of the glass electrode [16—20] it was learned that, above all, the surface structure of the electrode material directly at the solution boundary influences the selectivity. In the interest of the greatest possible selectivity, only the ion to be sensed should have the ability to be reversibly absorbed and released by the electrode material. Investigations by Eisenman et al. [21] showed that the selectivity of glass electrodes is determined by the equilibrium constant of the reaction ... 

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