Provides an insight into trends in ceramics theory, processing and applications as related to diffusional phenomena and defect behavior. This seventh volume includes abstracts of papers which appeared between the publication of "Annual Retrospective VI" (Volumes 226-228) and the end of July, 2005. It contains 17 papers and 688 selected abstracts.

Identification of Mg Vacancy in MgO by Positron Lifetime Measurements and First-Principles Calculations Analysis of the Effect of the Oxide Ion Vacancy on the Crystal Structure of La1-xCaxCrO3-δ by High-Temperature X-Ray Diffraction under Various Oxygen Partial PressuresSynthesis and Characterization of Lithium Ion Conductors, Li3InBr6 and their Substituted CompoundsOxygen Diffusion in La2-xSrxCuO4-δ: Molecular Dynamics Study Review: Stress-Induced Diffusion and Cation Defect Chemistry Studies of Perovskites Transport and Electrochemical Properties of LiyNixMn2-xO4 (0.1 ≤ x ≤ 0.5) Cathode Materials Static and Dynamic Heterogeneities in Supercooled SiO2Charge Distribution and Magnetic Interactions in PrBa2Cu3O7 with Substitutional Defects and Oxygen Disorder: the ab initio Approach Grain Boundary Defects in ZnO Ceramic Doped with Mo Elucidation of Ionic Conduction in Oxide Electrolytes by AC Method (Dielectric Relaxation Processes in La1-xSrxGa1-x+0.1Tix-0.1O3-δ) Diffusion of Oxygen at Ceramic Interfaces for High-Temperature Solid Oxide Fuel Cells Structural Defect Formation in Inorganic Sol-Gel Derived Oxides High Oxide Ion Conductivity of (Ba1-x-ySrxLay)InO2.5+y/2 Members Derived from the Ba2In2O5 System Germanium in Czochralski SiliconCation Transport in Stabilised ZirconiasProbing the Effects of SHI and Doping-Induced Defects in Nanocrystalline Spinel Ferrites Size Effect on the Electronic Properties of Doped and Undoped Ceria