|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Coupling Advanced Characterization and Modeling Tools for Understanding Fundamental Phase Transformation Mechanisms: An MPMD Symposium in Honor of Hamish Fraser
||Applications of Ordering Tie Lines to Represent ALCHEMI Data in Intermetallic Compounds and Complex Oxides
||Mark Aindow, Louis V. Gambino, Yanling Hu, Lichun Zhang
|On-Site Speaker (Planned)
The technique of Atom Location by CHanneling-Enhanced MIcroanalysis (ALCHEMI) is a transmission electron microscopy (TEM) technique for the measurement of local site occupancies in crystals using X-ray or electron spectrometry. There are many important problems for which ALCHEMI could give useful insights, but the technique is not used widely, perhaps in part because the interpretation of ALCHEMI data is perceived as being rather challenging. In a seminal paper by Hou, Jones and Fraser it was shown that such data could be represented graphically in compositional space using an ordering tie line (OTL) construction. Such OTL plots reveal both the sense of the order (site occupancy preference) and the quality of the data in a straightforward fashion, which is easy to interpret. Here we will illustrate the power and versatility of the OTL approach by reviewing ALCHEMI studies on ordered and topologically close-packed intermetallic phases, conducting oxides and epitaxial thin films.
||Planned: Supplemental Proceedings volume