About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithms Development in Materials Science and Engineering
|
Presentation Title |
Phase field simulation of crystal facet growth of diamonds using MFEM software |
Author(s) |
Xiaotian Hua, Sergey Baryshev, Rebecca Anthony, Hui-Chia Yu |
On-Site Speaker (Planned) |
Xiaotian Hua |
Abstract Scope |
Microwave plasma chemical vapor deposition (MPCVD) is a premier technique to growth large single crystal diamonds. While a certain portion of a diamond sample remains single-crystalline, as the sample grows exceeding a critical size, the outer rim however grows to polycrystalline disordered phases, for which a conclusive understanding of the underlying mechanisms is still lacking. We intend to employ a phase-field model (PFM) to simulate the diamond growth behavior and uncover the mechanisms responsible for the single-to-polycrystalline transition in diamond. In this work, we leverage a high-performance, light-weighted open-source library (Module Finite Element Method, MFEM) as our mathematic solver. In this talk, we will introduce our MFEM-based PFM simulation code of facet crystal growth of diamond samples. We will also present the benchmarks of the MFEM code against typical finite-difference method based PFM code, and assess the advantages and disadvantages of using MFEM on phase field modeling. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Computational Materials Science & Engineering, Process Technology |