About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
Optical Properties of Iridium at High Temperatures |
Author(s) |
Minsu Oh, John McElearney, Kevin Grossklaus, Thomas Vandervelde |
On-Site Speaker (Planned) |
Minsu Oh |
Abstract Scope |
With a melting point over 2400°C and oxidation resistance comparable to platinum, iridium (Ir) has many potential applications where thermal stability is desired. As material properties are generally a function of temperature, so it is not surprising that optical properties, such as refractive index, also vary with temperature. In fact, the temperature-dependent variation of material properties may cause the material’s performance to differ from what is expected or modeled based on its properties at room temperature. Thus, temperature-dependent material properties are needed to achieve more accurate modelling. In this work, we present optical properties of sputtered Ir at higher temperatures. An optically thick layer of Ir is sputter-deposited, using argon as a sputtering gas. The optical properties of as-deposited and annealed Ir samples are characterized by ellipsometry. The results of atomic force microscopy (AFM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) will also be provided. |
Proceedings Inclusion? |
Planned: |
Keywords |
Other, |