Pipe and grain boundary diffusion of He in UO2

Grain Boundary Diffusion and Fractal Interface Concept

Lattice and grain boundary diffusion of cations in tetragonal zirconia

Zirconia is a widely used oxide ceramic in various high performance applications due to its attractive mechanical, electrical and thermal properties. In particular, the material 3 mol% yttria stabilized tetragonal zirconia (3YTZ) has been shown to undergo superplastic deformation [1]. One crucial step in the understanding of processes like superplasticity involves the knowledge of appropriate c...

On Diffusion-Induced Grain-Boundary Motion

We consider a sharp interface model which describes diffusioninduced grain-boundary motion in a poly-crystalline material. This model leads to a fully nonlinear coupled system of partial differential equations. We show existence and uniqueness of smooth solutions.

GRAIN BOUNDARY DIFFUSION IN POLYCRYSTALLINE SILICON FILMS ON SiO2

The enhanced grain boundary diffusion in cw laser processed LPCVD polycrystalline silicon films on insulating SiC>2 has been investigated and the grain boundary diffusion coefficient D' for Phosphorus has been determined. Mesa diodes were fabricated in the large grain poly-Si films by standard photolithographic and etching methods and subsequent ion implantation. The electron beam induced curre...

Constrained Grain Boundary Diffusion in Thin Copper Films