## Treatise on materials science and technology, Volume 4 |

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Page 61

This is then proportional to a concentration gradient through a coefficient Dl with

dimensions area/time. This coefficient is called the

diffusivity and since the flux may be dependent upon position and time, so may

the ...

This is then proportional to a concentration gradient through a coefficient Dl with

dimensions area/time. This coefficient is called the

**diffusion coefficient**ordiffusivity and since the flux may be dependent upon position and time, so may

the ...

Page 62

These are the assumption that the concentration gradient only is present in one

direction and that the

directions of three-dimensional space must be considered and the diffusion ...

These are the assumption that the concentration gradient only is present in one

direction and that the

**diffusion coefficient**is a scalar. More generally, all threedirections of three-dimensional space must be considered and the diffusion ...

Page 95

Thus, with f0 the correlation factor for solvent self-diffusion, f0 =0.78, *i = W, +f2)

x2 = l/14(/3 + 2/4 +/, + 2/6 +/7 +f, + 2f9 +/10 + 2/„ +f12) With these terms, the

solvent tracer

= - 18 ...

Thus, with f0 the correlation factor for solvent self-diffusion, f0 =0.78, *i = W, +f2)

x2 = l/14(/3 + 2/4 +/, + 2/6 +/7 +f, + 2f9 +/10 + 2/„ +f12) With these terms, the

solvent tracer

**diffusion coefficient**can be written as Z> = Z>(/0=0)[1 +yl0] where y= - 18 ...

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### Contents

Microstructural Characterization of Thin Films | 2 |

Fundamental Concepts of Diffraction | 4 |

Epitaxial Monocrystalline Films | 10 |

Copyright | |

26 other sections not shown

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### Common terms and phrases

a-sublattice Acta alloys aluminum average beam calculated compaction component compositional dependences compression concentration configurational entropy copper correlation factor crystallites CsCl phases decreases deformation diffraction pattern diffusion coefficient dislocation density disorder parameter effect electron diffraction equations Evans and Flanagan f.c. tetragonal face-centered cubic fiber axis flux forged free energy function Gibbs free energy given increases intermetallic iron powder isostatic jump rate lattice disorder material matrix mechanism nearest neighbor observed obtained occurs oriented partial enthalpy partial entropy Phys plane Poisson ratio polycrystalline probability pure metals random reciprocal lattice relps RHEED shear stress shown in Fig single crystals sintered sintered powder solid solution strengthening solute atoms solute content specimen stacking fault energy stoichiometry stress-strain curve structure sublattice Substituting surface Suzuki TED pattern temperature dependence tetragonal theoretical thermal thermodynamic thermodynamic activities thermodynamic properties thin films tracer jump twin vacancy jumps values variations Vook X-ray yield stress