A5064779008- Shape Memory Alloy Transformations
- Machine Learning in Materials Science
- X-ray Diffraction in Crystallography
- Electron and X-Ray Spectroscopy Techniques
- Advanced materials and composites
- Titanium Alloys Microstructure and Properties
- Ferroelectric and Piezoelectric Materials
- Non-Destructive Testing Techniques
- Intermetallics and Advanced Alloy Properties
- Advanced Condensed Matter Physics
- 3D Shape Modeling and Analysis
- Geophysical and Geoelectrical Methods
- Advanced ceramic materials synthesis
- Bone Tissue Engineering Materials
- Additive Manufacturing and 3D Printing Technologies
- Solidification and crystal growth phenomena
- Materials Engineering and Processing
- High-Velocity Impact and Material Behavior
- High-Temperature Coating Behaviors
- Laser-Plasma Interactions and Diagnostics
- Advanced Surface Polishing Techniques
- Erosion and Abrasive Machining
- Optical measurement and interference techniques
- Microstructure and mechanical properties
- Material Dynamics and Properties
IIT@MIT
2021-2023
Massachusetts Institute of Technology
2019-2022
Moscow Institute of Thermal Technology
2022
University of Cambridge
2018-2021
Northwestern University
2015-2016
Ti-Nb based β-Ti alloys are a promising new class of superelastic, shape-memory, and low-modulus materials for wide range applications. A critical phase in is the ω phase, which greatly affects mechanical properties superelastic/shape-memory behaviour these materials. Zirconium, an important alloying constituent many alloys, generally regarded as suppressant, but body evidence supporting this view unconvincing includes number conflicting reports. In article, role Zr on formation clarified...
The Johnson-Mehl-Avrami-Kolmogorov (JMAK) equation is widely used to describe phase transformation kinetics. This description, however, not valid in finite size domains, particular, thin films. A new computational model incorporating the level-set method employed study evolution film systems. For both homogeneous (bulk) and heterogeneous (surface) nucleation, nucleation density thickness were systematically adjusted finite-thickness effects on Avrami exponent during process. Only...
Abstract Zirconia polycrystals have historically suffered from catastrophic cracking during the tetragonal‐monoclinic martensitic transformation. Recently, transformation‐induced has been avoided by doping to achieve crystallographic compatibility between transforming phases. However, these materials showed depressed transformation temperatures and incomplete transformation, causes for which are yet unknown. In this work, we probe phenomena performing a comparative study of sintered pellets...
Resolving pseudosymmetry has long presented a challenge for electron backscatter diffraction and been notoriously challenging in the case of tetragonal ZrO 2 particular. In this work, method is proposed to resolve by building upon dictionary indexing augmenting it with application global optimization fit accurate pattern centers, clustering Hough-indexed orientations focus orientation space interpolation improve accuracy indexed solution. The demonstrated 100% simulated patterns , even high...
Accurately indexing pseudosymmetric materials has long proven challenging for electron backscatter diffraction. The recent emergence of intensity-based approaches promises an enhanced ability to resolve pseudosymmetry compared with traditional Hough-based approaches. However, little work been done understand the effects sample position and orientation on pseudosymmetry, especially Thus, in this crystal detector distance a model tetragonal ZrO 2 ( c / = 1.0185) material are quantitatively...
Lattices are classified into one of fourteen Bravais types according to their symmetries. Defining whether a symmetry is fulfilled or broken, however, difficult. This paper presents method for quantifying symmetry-breaking using strain. The employed create map the lattice landscape.
Cracking is generally regarded as an unavoidable consequence of martensitic transformation in polycrystalline ZrO2-based ceramics. This shortcoming has limited shape-memory ceramics (SMCs) to micron-sized single- or oligo-crystals reduce bulk stresses. In this paper we explore alternate approach transformation-induced cracking by manipulating the crystallographic phase compatibility ZrO2-CeO2 For a range compositions 12.5-15 mol% CeO2, present lattice parameter measurements for tetragonal...
Accurate pattern center determination has long been a challenge for the electron backscatter diffraction (EBSD) community and is becoming critically accuracy-limiting more recent advanced EBSD techniques. Here, we study parameter landscape over which must be fitted in quantitative detail reveal that it both sloppy noisy, limits accuracy to centers can determined. To locate global optimum this challenging landscape, propose combination of two approaches: use search algorithm averaging results...
Resolving pseudosymmetry has long presented a challenge for electron backscatter diffraction (EBSD) and been notoriously challenging in the case of tetragonal ZrO2 particular. In this work, method is proposed to resolve by building upon dictionary indexing augmenting it with application global optimization fit accurate pattern centers, clustering Hough-indexed orientations focus orientation space, interpolation improve accuracy indexed solution. The demonstrated 100% simulated patterns ZrO2,...
Accurately indexing pseudosymmetric materials has long proven challenging for electron backscatter diffraction. The recent emergence of intensity-based approaches promises an enhanced ability to resolve pseudosymmetry compared traditional Hough-based approaches. However, little work been done understand the effects sample position and orientation on pseudosymmetry, especially Thus, in this we quantitatively investigate crystal detector distance a model tetragonal ZrO2 (c/a=1.0185) material....