Automating Dislocation Characterization in 3D Dark Field X-ray Microscopy

التفاصيل البيبلوغرافية
العنوان: Automating Dislocation Characterization in 3D Dark Field X-ray Microscopy
المؤلفون: Huang, Pin-Hua, Coffee, Ryan, Dresselhaus-Marais, Leora
المصدر: Integrating Materials and Manufacturing Innovation, 12, 83-91 (2023)
سنة النشر: 2022
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: Mechanical properties in crystals are strongly correlated to the arrangement of 1D line defects, termed dislocations. Recently, Dark field X-ray Microscopy (DFXM) has emerged as a new tool to image and interpret dislocations within crystals using multidimensional scans. However, the methods required to reconstruct meaningful dislocation information from high-dimensional DFXM scans are still nascent and require significant manual oversight (i.e. \textit{supervision}). In this work, we present a new relatively unsupervised method that extracts dislocation-specific information (features) from a 3D dataset ($x$, $y$, $\phi$) using Gram-Schmidt orthogonalization to represent the large dataset as an array of 3-component feature vectors for each position, corresponding to the weak-beam conditions and the strong-beam condition. This method offers key opportunities to significantly reduce dataset size while preserving only the crystallographic information that is important for data reconstruction.
نوع الوثيقة: Working Paper
DOI: 10.1007/s40192-023-00295-6
URL الوصول: http://arxiv.org/abs/2211.05247
رقم الأكسشن: edsarx.2211.05247
قاعدة البيانات: arXiv
الوصف
DOI:10.1007/s40192-023-00295-6