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Journals

Macromodel-Based Simulation of Progressive Collapse: RC Frame Structures

October 12, 2021

Author(s)

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

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

Theory of Layer SMA Actuators

October 12, 2021

Author(s)

Alexander L. Roytburd, Julia Slutsker

Two types of multilayer actuators based on a shape memory alloy (SMA) film as an adtive component are explored theoretically. One of them uses the bending of an...

Vector-Valued Phase Field Model for Crystallization and Grain Boundary Formation

October 12, 2021

Author(s)

R Kobayashi, James A. Warren, W Carter

We propose a new model for calculation of the crystallization and impingement of many particles with differing orientations. Based on earlier phase field models...

Fluoroscent Probe for Cure Monitoring of Hydrosilation-Curable Silicone

October 12, 2021

Author(s)

Y Hotta, K Komatsu, Francis W. Wang

This study aimed to evaluate a fluorescent probe, 9,10-bis-(phenylethynyl) anthracene (BPEA), for cure monitoring of hydrosilation-curable silicone (HCS). The...

Design of Nanocrystalline Magnetic Materials and Their Applications as Soft Magnets and Magnetic Refrigerants

October 12, 2021

Author(s)

Freemon Johnson, Robert D. Shull

This review is divided into two main parts, with the common theme of nanocrystalline metallic magnetic alloys. The first part will introduce soft magnetic...

Self-Assembled Multiferroic Nanostructures in CoFe₂O_4-PbTiO₃ System

October 12, 2021

Author(s)

Jiying Li, Igor Levin, Julia Slutsker, Virgil Provenzano, Peter K. Schenck, J.H. Yang, Alexander L. Roytburd

The effect of substrate orientation of the morphologies of epitaxial self-assembled nanostructures was demonstrated using newly synthesized multiferroic 0...

Arrhenius-like Temperature Dependence of the Segmental Relaxation below T_g

October 12, 2021

Author(s)

P A. O'Connell, G B. McKenna

In a recent paper DiMarzio and Yang [J. Res. Natl. Inst. Stds. Technol., 102, 135 (1997)] predicted that transport properties such as viscosity and diffusion...

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