26 Works

Liquid-solid Metallic Mixture Coarsening Data - 28% Solid

John W. Gibbs, Peter W. Voorhees & Julie L. Fife
This data was collected to study isothermal coarsening of a liquid-solid metallic mixture. In these experiments, an Al-Cu alloy was heated to 5K above the eutectic temperature, forming a liquid-solid mixture with a constant amount of the two phases. The initial microstructure on heating is a dendritic array within a eutectic matrix; once the temperature exceeds the eutectic temperature, the eutectic matrix melts leaving the dendrites surrounded by liquid. In this state, the interfaces between...

Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus

Hyejin Jang, Joshua D. Wood, Christopher R. Ryder, Mark C. Hersam & David G. Cahill
These are the raw data of Time-domain Thermoreflectance (TDTR) measurements on exfoliated black phosphorus (BP) flakes. The flakes are mechanically exfoliated onto Si substrates and have the thicknesses ranging from 138 to 552 nm. They are encapsulated with ALD-grown ~3 nm alumina layer to prevent possible sample degradation. For TDTR measurements, the samples are further coated with ~70 nm NbV transducer. The through-plane thermal conductivity of the BP flakes along with their two interfactial thermal...

Gravure Printing of Graphene for Large-Area Flexible Electronics

Ethan B. Secor, Sooman Lim, Heng Zhang, Daniel C. Frisbie, Lorraine F. Francis & Mark C. Hersam
The data corresponds to the demonstration of gravure-printed graphene patterns using polymer ethyl cellulose as an effective ink stabilizer. Concentrated graphene inks are prepared with controlled viscosity using the polymer as both stabilizing agent and rheology modifier. Gravure printing is demonstrated for high-fidelity patterns on flexible plastic substrates. Characterization of the printed patterns using optical microscopy, optical profilometry, atomic force microscopy, scanning electron microscopy, and electrical measurements reveals favorable properties for printed and flexible electronics...

The Mechanism of Eutectic Growth in Highly Anisotropic Materials

Ashwin J. Shahani, Xianghui Xiao & Peter W. Voorhees
This data was collected to study the growth process of an irregular eutectic from a featureless liquid. An irregular eutectic (such as Al-Ge in this work) consists of a faceted constituent (e.g., Si or Ge) and a nonfaceted one (e.g., Al or Ag) which may grow in a coupled manner. The growth process of an irregular eutectic alloy remains poorly understood due to the lack of 4D (i.e., 3D space plus time) resolved data. Thus,...

TesteIFC

Lino Andre

EMsoft Electron Backscattered Diffraction (EBSD) Master Pattern Dataset for Magnesium (Mg)

Marc De Graef
This set of data files provides the master patterns for the simulation of EBSD patterns for hexagonal Mg for a number of different microscope accelerating voltages. These files can be used to simulate actual patterns and to generate a pattern dictionary for dictionary-based indexing of experimental EBSD patterns. Information on the pattern simulation can be found in P.G. Callahan and M. De Graef, Dynamical EBSD Patterns Part I: Pattern Simulations, Microscopy and Microanalysis, vol. 19,...

Inkjet Printing of High Conductivity, Flexible Graphene Patterns

Ethan B. Secor, Pradyumna L. Prabhumirashi, Kanan Puntambekar, Michael L. Geier & Mark C. Hersam
The data corresponds to the demonstration of inkjet-printed graphene patterns using polymer ethyl cellulose as an effective ink stabilizer. Few-layer graphene flakes are produced by liquid-phase exfoliation and stabilized by ethyl cellulose to formulate inks suitable for inkjet printing. Printed patterns exhibit high conductivity and mechanical flexibility following a mild thermal annealing step. Characterization of the materials using atomic force microscopy, scanning electron microscopy, thermal gravimetric analysis, and electrical measurements reveals suitable properties for application...

Dataset for Segmentation of Four-dimensional, X-ray Computed Tomography Data

John W. Gibbs, Peter W. Voorhees & Julie L. Fife
This data was collected to study isothermal coarsening of a liquid-solid metallic mixture. In these experiments, an Al-Cu alloy was heated to 5K above the eutectic temperature, forming a liquid-solid mixture with a constant amount of the two phases. The initial microstructure on heating is a dendritic array within a eutectic matrix; once the temperature exceeds the eutectic temperature, the eutectic matrix melts leaving the dendrites surrounded by liquid. In this state, the interfaces between...

Dataset for Determination of Residual Stress in a Microtextured Alpha-titanium Component using High Energy Synchrotron X-ray

Jun-Sang Park, Atish K. Ray, Paul R. Dawson, Ulrich Lienert & Matthew P. Miller
A shrink-fit sample is manufactured with a Ti-8Al-1Mo-1V alloy to introduce a multi-axial residual stress field in the disk of the sample. A set of strain and orientation pole figures are measured at various locations across the disk using synchrotron high energy X-ray diffraction. This data set contains the strain pole figures and local orientation distribution functions for 105 diffraction volumes interrogated. Data reduction from the raw image files were performed using a suit of...

Coarsening of a semisolid Al-Cu alloy

Jules Dake, Jette Oddershede, Henning Sørensen, Thomas Werz, J. Cole Shatto, Kentaro Uesugi, Søren Schmidt & Carl Krill III
3D datasets of Al-5 wt% Cu (with crystallographic orientation) recorded over the course of annealing in the semisolid state. The data is saved as compressed (.zip) text files, which contain seven columns. These are (in order): the grain label; row, column & layer voxel indices; followed by a 3 component Rodrigues vector for describing the crystallographic orientation.

Point Defects and Grain Boundaries in Rotationally Commensurate MoS2 on Epitaxial Graphene

Xiaolong Liu, Itamar Balla, Hadallia Bergeron & Mark C. Hersam
The data corresponds to the characterization of various point defects and grain boundaries in rotationally commensurate MoS2 on epitaxial graphene. The MoS2 was grown on the epitaxial graphene on silicon carbide using chemical vapor deposition. The structural and electronic nature of the defects are investigated using scanning tunneling microscopy and spectroscopy. This work gives insight into common defects in MoS2 in efforts to guide defect engineering for tailoring the performance of MoS2/graphene heterostructure. DOI: 10.1021/acs.jpcc.6b02073

Dataset for \"Load-partitioning in an Oxide Dispersion-strengthened 310 Steel at Elevated Temperatures\"

Yinbin Miao, Kun Mo, Zhangjian Zhou, Xiang Liu, Kuan-Che Lan, Guangming Zhang, Jun-Sang Park, Jonathan Almer & James Stubbins
Here the high temperature tensile performance of an oxide dispersion-strengthened (ODS) 310 steel is reported upon. The microstructure of the steel was examined through both transmission electron microscopy (TEM) and synchrotron scattering. In situ synchrotron X-ray tensile investigation was performed at a variety of temperatures, from room temperature up to 800 ◦C. Pyrochlore structure yttrium titanate and sodium chloride structure titanium nitride phases were identified in the steel along with an austenite matrix and marginal...

EMsoft Electron Backscattered Diffraction (EBSD) Master Pattern Dataset for Silicon (Si)

Marc De Graef
This set of data files provides the master patterns for the simulation of EBSD patterns for diamond-Si for a number of different microscope accelerating voltages. These files can be used to simulate actual patterns and to generate a pattern dictionary for dictionary-based indexing of experimental EBSD patterns. Information on the pattern simulation can be found in P.G. Callahan and M. De Graef, Dynamical EBSD Patterns Part I: Pattern Simulations, Microscopy and Microanalysis, vol. 19, pp....

EMsoft Electron Backscattered Diffraction (EBSD) Master Pattern Dataset for Iron (Fe)

Marc De Graef
This set of data files provides the master patterns for the simulation of EBSD patterns for bcc-Fe for a number of different microscope accelerating voltages. These files can be used to simulate actual patterns and to generate a pattern dictionary for dictionary-based indexing of experimental EBSD patterns. Information on the pattern simulation can be found in P.G. Callahan and M. De Graef, Dynamical EBSD Patterns Part I: Pattern Simulations, Microscopy and Microanalysis, vol. 19, pp....

IFC

Gabriel Andre

Liquid-solid Metallic Mixture Coarsening Data - 80% solid

John W. Gibbs, Peter W. Voorhees & Julie L. Fife
This data was collected to study isothermal coarsening of a liquid-solid metallic mixture. In these experiments, an Al-Cu alloy was heated to 5K above the eutectic temperature, forming a liquid-solid mixture with a constant amount of the two phases. The initial microstructure on heating is a dendritic array within a eutectic matrix; once the temperature exceeds the eutectic temperature, the eutectic matrix melts leaving the dendrites surrounded by liquid. In this state, the interfaces between...

Liquid-solid Metallic Mixture Coarsening Data - 35% Solid

John W. Gibbs, Peter W. Voorhees & Julie L. Fife
This data was collected to study isothermal coarsening of a liquid-solid metallic mixture. In these experiments, an Al-Cu alloy was heated to 5K above the eutectic temperature, forming a liquid-solid mixture with a constant amount of the two phases. The initial microstructure on heating is a dendritic array within a eutectic matrix; once the temperature exceeds the eutectic temperature, the eutectic matrix melts leaving the dendrites surrounded by liquid. In this state, the interfaces between...

Twin-mediated Crystal Growth: an Enigma Resolved

Ashwin Shahani, E. Begum Gulsoy, Stefan O. Poulsen, Xianghui Xiao & Peter W. Voorhees
This data was collected to study the growth behavior of faceted Si particles in an Al-Si-Cu liquid, upon continuous cooling. The as-cast, hyper-eutectic sample consisted of primary Si particles in a eutectic matrix. Upon heating to above the liquidus temperature for Si (here, we heat to 910 C), the Si particles melted, leaving behind a featureless liquid. Then, the sample temperature was lowered at a rate of 1 C per minute while projections were recorded....

EMsoft Electron Backscattered Diffraction (EBSD) Master Pattern Dataset for Nickel (Ni)

Marc De Graef
This set of data files provides the master patterns for the simulation of EBSD patterns for fcc-Ni for a number of different microscope accelerating voltages. These files can be used to simulate actual patterns and to generate a pattern dictionary for dictionary-based indexing of experimental EBSD patterns. Information on the pattern simulation can be found in P.G. Callahan and M. De Graef, Dynamical EBSD Patterns Part I: Pattern Simulations, Microscopy and Microanalysis, vol. 19, pp....

Dataset for High-throughput Ab-initio Dilute Solute Diffusion Database

Henry Wu, Tam Mayeshiba & Dane Morgan
We demonstrate automated generation of diffusion databases from high-throughput density functional theory (DFT) calculations. A total of more than 230 dilute solute diffusion systems in Mg, Al, Cu, Ni, Pd, and Pt host lattices have been determined using multi-frequency diffusion models. We apply a correction method for solute diffusion in alloys using experimental and simulated values of host self-diffusivity.

Dataset for \"Characterization of Neutron-irradiated HT-UPS Steel by High-energy Xray Diffraction Microscopy\"

Xuan Zhang, Jun-Sang Park, Jonathan Almer & Meimei Li
Measurement of neutron-irradiated microstructure using far-field high energy X-ray diffraction microscopy (FF-HEDM) in a high-temperature ultrafine-precipitate-strengthened (HT-UPS) austenitic stainless steel. Grain center of mass, grain size distribution, crystallographic orientation (texture), diffraction spot broadening and lattice constant distributions of individual grains were obtained for samples in three different conditions: non-irradiated, neutron-irradiated (3 dpa/ 500 deg C), and irradiated + annealed (3 dpa / 500 deg C + 600 deg C/ 1 h)

Liquid-solid Metallic Mixture Coarsening Data - 55% solid

John W. Gibbs, Peter W. Voorhees & Julie L. Fife
This data was collected to study isothermal coarsening of a liquid-solid metallic mixture. In these experiments, an Al-Cu alloy was heated to 5K above the eutectic temperature, forming a liquid-solid mixture with a constant amount of the two phases. The initial microstructure on heating is a dendritic array within a eutectic matrix; once the temperature exceeds the eutectic temperature, the eutectic matrix melts leaving the dendrites surrounded by liquid. In this state, the interfaces between...

Rotationally Commensurate Growth of MoS2 on Epitaxial Graphene

Xiaolong Liu, Itamar Balla, Hadallia Bergeron, Gavin J. Campbell, Michael J. Bedzyk & Mark C. Hersam
This data demonstrates the rotationally commensurate growth of atomically thin MoS2 on epitaxial graphene (EG) on silicon carbide using chemical vapor deposition. The characterization of the MoS2/EG heterostructure is performed using atomic force microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, synchrotron X-ray scattering, atomic-resolution scanning tunneling microscopy (STM), and scanning tunneling spectroscopy. DOI: 10.1021/acsnano.5b06398

Surface Mass Diffusion and Step Stiffness on an Anisotropic Surface; Mo(011)

Michal Ondrejcek, Wacek Swiech, Curtis S. Durfee & C. Peter Flynn
Step fluctuations have been studied on Mo(011) thin single crystal films with various orientations of miscut, in order to determine the step stiffnesses. Measurements of fluctuation amplitudes and relaxation times were made in the temperature range 1080–1680 K. Surface diffusion Ds is documented at T/Tm~0.5, while the crossover to relaxation driven by bulk vacancy diffusion is inferred for T/Tm~0.6. Here, Tm is the melting temperature Tm = 2896 K. We obtain Ds = 4x10-4 exp(-1.13...

The Effects of Heat Treatment on Very High Cycle Fatigue Behavior in Hot-rolled WE43 Magnesium

Jacob F. Adams, John E. Allison & J. Wayne Jones
This is an experimental dataset testing integration between MDF and Materials Commons, underlying dataset may not be available immediately. This data can be access at the Materials Commons from the following link. ** Add Link **

Registration Year

  • 2016
    26

Resource Types

  • Dataset
    24