A Subgrain‐Size Piezometer Calibrated for EBSD

Developments in AZtec: New Solutions for EBSD

Electron backscatter diffraction EBSD is a powerful technique applicable to a range of microstructural analyses, including texture, grain size, boundary characterization, phase distribution and inter-phase orientation relationships. The technique is suited to solving an increasing range of analytical problems on the um to mm scale. However, best results are only obtained with a good understandi...

New piezometer hammer and jack for easy installation and pulling out of the piezometer in drainage and ground water studies

A Dictionary Approach to EBSD Indexing

We propose a framework for indexing of grain and sub-grain structures in electron backscatter diffraction (EBSD) images of polycrystalline materials. The framework is based on a previously introduced physics-based forward model by Callahan and De Graef (2013) relating measured patterns to grain orientations (Euler angle). The forward model is tuned to the microscope and the sample symmetry grou...

A System of Pde for Calibrated Geometries

Given a real vector space V equipped with an Euclidean metric, (after rescaling) any p-form φ ∈ V p V ∗ defines a calibration on V . This note identifies an exterior differential system whose integral submanifolds are precisely the critical submanifolds of the calibration. In particular, calibrated submanifolds are necessarily integral submanifolds of the system. The result is extended to calib...

Towards a Calibrated Corpus for Compression Testing

A mini-corpus of twelve ‘calibrated’ binary-data files have been produced for systematic evaluation of compression algorithms (Available at http : //www.tcode.auckland.ac.nz/-mark/corpus). These are generated within the framework of a deterministic theory of string complexity [2]. Here the T-complexity of a string z (measured in taugs) is defined as CT(Q) = Ci logz(ki + 1): where the positive i...