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Journals

Precise Determination of the Energy-Dependent X-Ray Diffraction Phases and the Site-Specific Short-Range Order in Yba₂Cu₃O_6.8 Using DAFS

October 12, 2021

Author(s)

Charles E. Bouldin, H Stragier, Bruce Ravel, L B. Sorensen

We have used a self-comsistent Kramers-Kr nig analysis of the diffraction anomalous fine structure (DAFS) signals to precisely determine the phase of a series...

Atomistic Insights into Disclocation Dynamics in Metal Forming

October 12, 2021

Author(s)

Francesca Tavazza, Anne M. Chaka, Lyle E. Levine

Almost all of the mechanical behavior changes that occur during plastic deformation result from the evolution of dislocation structures. Statistical models...

Analysis of the Mechanism for Chaotic Mixing in Oscillatory Flow Microfluidic Devices

October 12, 2021

Author(s)

Frederick R. Phelan Jr., N R. Hughes, Jai A. Pathak

Flow in a cross channel mixer has been explored as a model system for mixing fluids in microfluidic devices using oscillatory flow boundary conditions, via...

Strength Evaluation on a Composite Marine Propeller Blade

October 12, 2021

Author(s)

H J. Lin, J J. Lin, Tze-Jer Chuang

The strength of a composite propeller blade is evaluated by performing a nonlinear hydro-elastic analysis. The finite element method, lifting surface theory...

Evaluation of Microstructure of BaTiO₃-Polymer Composites by Confocal Microscopy

October 12, 2021

Author(s)

C. K. Chiang, Li Piin Sung, R Popielarz, Jan Obrzut

Laser scanning confocal microscopy has been applied to examine the distribution of BaTiO3 particles in ceramic-polymer composite films. The thin-slice images of...

Quantitative Evaluation of Perfluorinated Alkylthiol Molecular Order on Gold Surfaces

October 12, 2021

Author(s)

L Gamble, D Radford, Daniel A. Fischer, D W. Grainger, David G. Castner

Self-assembled monolayers (SAMs) of perfluoroalkylthiols [CF 3(CF 2) xCH 2CH 2SH (x=3, 5, 7, and 9)] on gold were examined by X-ray photoelectron spectroscopy...

Surface Energy Anisotropy of SrTiO₃ at 1400 C in Air

October 12, 2021

Author(s)

T Sano, D M. Saylor, G S. Rohrer

Geometric and crystallographic measurements of grain boundary thermal grooves and surface faceting behavior as a function of orientation have been used to...

Comparison of Solid-State Microwave Annealing With Conventional Furnace Annealing of Ion-Implanted SiC

October 12, 2021

Author(s)

Siddarth Sundaresan, M V. Rao, Yong-lai Tian, John A. Schreifels, M. Wood, K Jones, Albert Davydov

Rapid solid-state microwave annealing was performed for the first time on N-, Al-, and B-implanted SiC and the results were compared with the conventional...

Tailoring the High-K Gate Dielectric/Sillicon Interface for CMOS Applications

October 12, 2021

Author(s)

Y S. Lin, R Puthenkovilakam, J P. Chang, C P. Bouldin, Igor Levin, Nhan Van Nguyen, Y Sun, P Pianetta, T Conard, W Vandervorst, V Venturo, S Selbrede

The interfacial properties, thermal stabilities, and the electrical characteristics of ZrO 2/ Si and ZrO 2/SiO 2/Si were investigated and the interfacial layer...

Direct Measurement of Valence Charge Asymmetry in GaAs Using X-Ray Standing Waves

October 12, 2021

Author(s)

E Nelson, Joseph Woicik

Through detection of valence photoelectrons, the technique of x-ray standing waves directly measured the charge asymmetry of the GaAs valence band. Using the...

The Nanostructure Problem

October 12, 2021

Author(s)

Simon J. Billinge, Igor Levin

The powerful methods we have for solving the atomic structure of bulk crystals fail for nanostructured materials and there are currently no broadly applicable...

Effects of Long Wavelength UV Irradiation on PFPE Molecular Bonding on CN_x for Magnetic Recording Hard Disks

October 12, 2021

Author(s)

J Zhang, Stephen M. Hsu, T Y. Liew

The use of long wavelength UV irradiation (320 to 390 nm) to induce bonding of a perffluoropolyether (PFPEP on CNx disks has been successfully demonstrated...

NEMI's Characterization of Lead-Free Alloy Applicable to Today's Commercially Available Alloys

October 12, 2021

Author(s)

A -. Rae, C A. Handwerker

Invited article in Circuits Assembly magazine that discusses how the NEMI Project's extensive characterization of the NEMI Sn-Ag-Cu alloy applies to other...

Damage Assessment on Magnetic Hard Disks Due to Nanoasperity Impacts at Head-Disk Interface

October 12, 2021

Author(s)

Tze-Jer Chuang, Stephen M. Hsu

A 3D finite element model is constructed to simulate the local impact and its aftermath.For a given design of the disk structure with known elastic/plastic and...

The Effects of Water on the Fatigue Behavior for Pultruded Glass-Reinforced Composite

October 12, 2021

Author(s)

Kate Liao, Carl R. Schultesiz, Donald L. Hunston, L C. Brinson

Pultruded composites are finding increasing use in infrastructure and marine applications where they see prolonged exposure to environmental factors such as...

Electron Backscatter Diffraction Investigation of a Nano-Crystalline Pt Thin Film

October 12, 2021

Author(s)

T Maitland, X Han, Mark D. Vaudin, G R. Fox, M Coy

A polycrystalline Pt thin film deposited on a cut Si single crystal wafer coated with SiO2 and a TiO2 adhesion layer was studied using automated electron...

Displacive Phase Transition in SrTiO₃ Thin Films Grown on Si(001)

October 12, 2021

Author(s)

F S. Aguirre-Tostado, A Herrera-Gomez, Joseph Woicik, R Droopad, Z Yu, D G. Schlom, E Karapetrova, P Zschack

Polarization dependent x-ray absorption fine structure measurements performed at the Ti K edge together with x-ray diffraction have been used to study the local...

Interface-Anisotropy Induced Asymmetry of Intermixing in Bilayers

October 12, 2021

Author(s)

P Sule, M. Menyhard, L Kotis, J Labar, William F. Egelhoff Jr.

The ion-sputtering induced intermixing is studied by molecular dynamics (MD) simulations and by Auger electron spectroscopy depth profiling (AES-SP) analysis in...

Thermal Properties of Pyroceram Code 9606

October 12, 2021

Author(s)

Daniel R. Flynn, James H. Yen, James J. Filliben, Robert R. Zarr, E M. Hohlfeld

In the late 1950s, Corning Glass Works measured the heat capacity, thermal diffusivity, and thermal expansion of Pyroceram Code 9606. In the early 1960s the...

Role of Substrate Material in Failure of Crown-Like Layer Structures

October 12, 2021

Author(s)

Jeonghwan Kim, Sanjit Bhowmick, Herzl Chai, Brian R. Lawn

The role of substrate modulus on critical loads to initiate and propagate radial cracks to failure in curved brittle glass shells on compliant polymeric...

An Algorithm for Computing the Compressive Strength of Heterogeneous Cohesive-Frictional Materials - Application to Cement Paste

October 12, 2021

Author(s)

F P. Ganneau, F -. Ulm, J Gondzio, Edward Garboczi

An algorithm based on a finite element discretization of the lower bound yield theorem is applied to digital images, which allows the determination of the...

Wind-Tunnel Model Scale and Estimates of Wind Effects on Low-Rise Buildings

October 12, 2021

Author(s)

Michael A. Riley, Emil Simiu

Although the wind load provisions of many modern building codes are based on the results of wind tunnel testing, some effects of model scale and pressure tap...

Influence of Hydrate Dissolution by Water on the Young s Modulus of Cement-Based Materials

October 12, 2021

Author(s)

S Kamali, M Moranville, Edward Garboczi, S Prene, B Gerard

Leaching of concrete by water may severely damage structures like radioactive waste depositories or water supply stations. This paper presents the influence of...

Macromodel-Based Simulation of Progressive Collapse: RC Frame Structures

October 12, 2021

Author(s)

Yihai Bao, Sashi Kunnath, Sherif El-Tawil, Hai S. Lew

Impedance/Dielectric Spectroscopy of Electroceramics. Part 2: Grain Shape Effects and Local Properties of Polycrystalline Ceramics

October 12, 2021

Author(s)

N Kidner, Z J. Homrighaus, B J. Ingram, T Mason, Edward Garboczi

The reduction of grain size from the microcrystalline regime into the nanocrystalline regime is known to produce significant changes in the transport properties...

Three-Dimensional Shape Analysis of Coarse Aggregates: Methodology and Preliminary Results on Several Different Coarse Aggregates

October 12, 2021

Author(s)

S T. Erdogan, P N. Quiroga, D Fowler, H A. Saleh, Richard A. Livingston, Edward Garboczi, Peter M. Ketcham, John G. Hagedorn, Steven G. Satterfield

The shape of aggregates used in concrete is an important parameter that helps determine many concrete properties. The mathematical technique of spherical...

Some Properties of Irregular 3-D Particles

October 12, 2021

Author(s)

Michael A. Taylor, Edward Garboczi, S T. Erdogan, D Fowler

This paper discusses some of the properties of irregular particles that are of interest to engineers, including volume, density, & surface area. Numerical and...

Transport Kinetics of Methanol in Hydroxyethyl Methacrylate Homopolymer and Its Copolymers

October 12, 2021

Author(s)

C-S Tsai, S H. Lee, Tinh Nguyen

The kinetics of methanol transport in 2-hydroxyethyl methacrylate (HEMA) homopolymer and 75/25 and 50/50 mole fraction HEMA/DHPMA (2,3-dihydroxypropyl...

Macromodel-Based Simulation of Progressive Collapse: Steel Frame Structures

October 12, 2021

Author(s)

K Khandelwal, Sherif El-Tawil, Sashi Kunnath, Fahim H. Sadek, Hai S. Lew

Spherical Harmonic-Based Random Fields for Aggregates Used in Concrete

October 12, 2021

Author(s)

Mircea Grigoriu, Edward Garboczi, C Kafali

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