Interface induced diffusion

Microstructural study of Ti/3YSZ interface in NI 105/Ni/Nb/Ti/3YSZ diffusion bonding

In this research, the diffusion bonding of the stabilized zirconia ceramic and Nimonic 105 superalloy using Ti/Nb/Ni multi-interlayer was carried out. Joint was performed using the plasma spark technique in a vacuum atmosphere and at different temperatures and times. The microstructure of the different joint zones was studied using optical and FESEM microscopes equipped with an EDS analyzer. Th...

Microstructural study of Ti/3YSZ interface in NI 105/Ni/Nb/Ti/3YSZ diffusion bonding

In this research, the diffusion bonding of the stabilized zirconia ceramic and Nimonic 105 superalloy using Ti/Nb/Ni multi-interlayer was carried out. Joint was performed using the plasma spark technique in a vacuum atmosphere and at different temperatures and times. The microstructure of the different joint zones was studied using optical and FESEM microscopes equipped with an EDS analyzer. Th...

Grain Boundary Diffusion and Fractal Interface Concept

Multi-scale diffusion on an interface

– We investigate how small scale metric fluctuations on a 2-D interface influence large scale lateral diffusion. We find that the effect of these fluctuations can be cumulative and grow exponentially with time; we also estimate the typical time after which the predictions of a model that ignores the small scale fluctuations substantially differ from the predictions of a more realistic model, wh...

Interface Detection in Diffusion Tensor MRI

We present a new method for detecting the interface, or edge, structure present in diffusion MRI. Interface detection is an important first step for applications including segmentation and registration. Additionally, due to the higher dimensionality of tensor data, humans are visually unable to detect edges as easily as in scalar data, so edge detection has potential applications in diffusion t...