|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||A New Characterization Tool for 3D Orientation Microscopy at Mesostructure Length Scales
||Thomas K Ales, Peter C. Collins
|On-Site Speaker (Planned)
||Peter C. Collins
We will present the first data obtained using a new variant of the Robo-Met.3D serial sectioning instrument that integrates a novel way to obtain crystallographic information using surface acoustic waves. The technique, known as spatially resolved acoustic spectroscopy (SRAS) uses two lasers to, firstly, induce a surface acoustic wave and secondly, measure its velocity. The velocity can be related to the elastic stiffness tensor, which in turn is related to the local crystal orientation. By conducting SRAS analysis on parallel slices in a completely automated fashion, it is possible to obtain 3D orientation microscopy datasets at the mesostructure length scale. We will describe the details of the method, as well as the instrumentation that was required to achieve these datasets in an automated manner.