Having trouble getting your students to understand what a dislocation actually is and how it moves and interacts with obstacles around it? This page contains some videos acquired using in situ TEM techniques and electron tomography to aid in visualizing the basic dislocation interactions.
Dislocation glide
Dislocation Cross Slip
Dislocation/grain boundary interaction
Three-Dimensional Dislocation Characterization
Welcome to the Kacher Lab website
For the materials of tomorrow to become the reality today, the fundamental defect interactions dictating how they behave and react to extreme environments. In the Kacher Lab, we focus on understanding material behavior in environments ranging from the high temperatures, irradiation, and corrosive media experienced in nuclear reactors from the damage accumulation experienced by a part after decades of use. A primary approach of our lab is to use in situ electron microscopy to isolate and characterize the defect behavior at critical points in a material’s life.
For teaching: Click on the ‘videos’ tab for examples of classic dislocation interactions