Diffusionisavitaltopicinsolid-statephysicsandchemistry,physicalmetallurgyandmaterialsscience.Diffusionprocessesareubiquitousinsolidsatelevatedtemperatures.Athoroughunderstandingofdiffusioninmaterialsiscrucialformaterialsdevelopmentandengineering.Thisbookfirstgivesanaccountofthecentralas