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Journals

Effect of an Adhesive Interlayer on the Fracture of a Brittle Coating on a Supporting Substrate

January 1, 2003

Author(s)

J Y. Kim, P Miranda, D K. Kim, Brian R. Lawn

The role of a compliant adhesive interlayer in determining critical conditions for radial fracture at the undersurfaces of brittle coatings bonded to substrates...

Apparent Mobility of Interfaces in Integral Resistor Material

January 1, 2003

Author(s)

Andrew J. Slifka, John W. Drexler

Measurements were made on an integral resistor sample that showed apparent interfacial mobility. Initial measurements were made using infrared, optical, and...

An Alternative Method of Solving Multilayer Bending Problem

January 1, 2003

Author(s)

C H. Hsueh, S K. Lee, Tze J. Chuang

Stress distributions in multilayers subjected to both residual stresses and external bending are analyzed to derive closed-form analytical solutions. There are...

Wear in Boundary Lubrication

January 1, 2003

Author(s)

Stephen M. Hsu, R G. Munro, M C. Shen

Wear studies under lubricated conditions can be classified into two nominally distinct categories: investigations of thewear mechanisms active within the...

Weibull Strength Scaling for Standardized Rectangular Flexure Specimens

January 1, 2003

Author(s)

George D. Quinn

Formulas for the effective volumes and effective surfaces for rectangular bars loaded in flexure are reviewed. The ratio of strengths from any two...

Dissociation and Evolution of Threading Dislocations in Epitaxial Ba_0.3Sr_0.7Ti0₃ Thin Films Grown on (001) LaA10₃

January 1, 2003

Author(s)

C J. Lu, Leonid A. Bendersky, K S. Chang, Ichiro Takeuchi

The defect structure of a 350-nm-thick epitaxial Ba0.3Sr0.7TiO3 (BSTO) film grown on (001) LaAlO3 has been investigated using conventional and high-resolution...

Wear Transitions and Tribochemical Reactions in Ceramics

January 1, 2003

Author(s)

S Jahanmir

Structural ceramics are used in diverse tribological applications due to their unique properties that include resistance to abrasion and erosion, resistance to...

The Effect of Surfactant on the Efficiency of Shear-Induced Drop Coalescence

January 1, 2003

Author(s)

Steven D. Hudson, A M. Jamieson, B Burkhart

Shear-induced drop coalescence efficiency e is measured by in situ videomicroscopy of emulsions of poly(propylene glycol) and poly(ethylene glycol), with poly...

Wavelength-Shift and Fluorescent Probes for Cure Monitoring of Resins

January 1, 2003

Author(s)

Francis W. Wang, R E. Lowry

The peak frequencies of the absorption and fluorescence spectra of some fluorescent probes dissolved in resins are sensitive ton the polarity and the local...

Controlled Release of Transforming Growth Factor From Composite Bone Grafts Consisting of Calcium Phosphate Cement and Biodegradable Particulates

January 1, 2003

Author(s)

C A. Khatri, Francis W. Wang

Calcium phosphate cement (CPC) was improved by incorporating porogens to induce macropores and trasforming growth factor to stimulate bone growth. A paste was...

Incoherent Neutron Scattering as a Probe of the Dynamics in Molecularly Thin Polymer Films

January 1, 2003

Author(s)

Christopher L. Soles, Jack F. Douglas, Wen-Li Wu, Robert M. Dimeo

Incoherent neutron scattering measurements were performed on polycarbonate (PC), poly(methyl methacrylate) (PMMA), and poly(vinyl chloride) (PVC) films of...

Prediction of Entropy and Dynamic Properties of Water below the Homogeneous Nucleation Temperature

January 1, 2003

Author(s)

Francis W. Starr, C A. Angell, H E. Stanley

Wall Migration and Shear-Induced Diffusion of Fluid Droplets in Emulsions

January 1, 2003

Author(s)

Steven D. Hudson

The spatial distribution of drops in multiphase flow through narrow passages is analyzed theoretically and experimentally. In simple shear between two plates...

Origin of Particle Clustering in a Simulated Polymer Nanocomposite and its Impact on Rheology

January 1, 2003

Author(s)

Francis W. Starr, Jack F. Douglas, S C. Glotzer

Proton NMR Characterization of Room-Temperature Aging in Isotactic Polypropylene and Ethylene/Octene Copolymers

January 1, 2003

Author(s)

David L. VanderHart, Chad R. Snyder, R G. Alamo

In this paper, we utilize the relatively high sensitivity of proton NMR to revisit a well recognized problem of ambient-temperature aging in a couple of...

Volumetric Contraction and Methacrylate Conversion in Photopolymerized Amorphous Calcium Phosphate/Methacrylate Composites

January 1, 2003

Author(s)

Drago Skrtic, J W. Stansbury, Joseph M. Antonucci

Confinement Effects on Moisture Absorption Kinetics in Polyelectrolyte Films

January 1, 2003

Author(s)

B D. Vogt, Christopher L. Soles, V. J. Lee, Eric K. Lin, Wen-Li Wu

Near Edge X-Ray Absorption Fine Structure Measurements of the Interface between Bottom Antireflective Coatings and a Model Deprotected Photoresist

January 1, 2003

Author(s)

E Jablonski, S Sambasivan, Eric K. Lin, Daniel A. Fischer, C Devadoss, R Puligadda

Recent Results On The Connection Between Thermodynamics And Dynamics In Supercooled Water

January 1, 2003

Author(s)

Francis W. Starr, C A. Angell, E LaNave, Srikanth Sastry, A Scala, F Sciortino, H E. Stanley

X-Ray Transition Energies: New Approach to a Comprehensive Evaluation

January 1, 2003

Author(s)

R Deslattes, Ernest G. Kessler, Paul Indelicato, L de Billy, E Lindroth, J Anton

The authors combine modern theoretical calculations with evaluated selected experimental data to produce a comprehensive data resource of K- and L-x-ray...

Stray Light and Ocean Color Remote Sensing

January 1, 2003

Author(s)

Steven W. Brown, Bettye C. Johnson, N Souaidia, R Barnes, D K. Clark

Instruments used to make radiometric measurements of the ocean are typically calibrated against incandescent sources with a spectral distribution that peaks in...

Experimental Studies of Peptide Bonds: Identification of the C₇^eq Conformation of the Alanine Dipeptide Analog N-Acetyl-Alanine N'-Methylamide From Torsion-Rotation Interactions

January 1, 2003

Author(s)

R J. Lavrich, David F. Plusquellic, R D. Suenram, Gerald T. Fraser, Angela R. Hight Walker, M J. Tubergen

Rotational spectra of the bio-mimetic molecule, alanine dipepitide and the double 15N( 15N 2) isotopomer have been observed using a pulsed-molecular-beam...

Development of a Portable Integrating Sphere Source for the Earth Observing System's Calibration Validation Programme

January 1, 2003

Author(s)

Steven W. Brown, Bettye C. Johnson

We have designed and built a portable integrating sphere source to be used at NASA satellite sensor calibration facilities in support of the EOS calibration...

Bogoliubov Approach to Superfluidity of Atoms in an Optical Lattice

January 1, 2003

Author(s)

A M. Rey, Karen G. Burnett, R Roth, M Edwards, Carl J. Williams, Charles W. Clark

We use the Bogoliubov theory of atoms in an optical lattice to the study the approach to the Mott-insulator transition. We derive an explicit expression for the...

Final Report on the Key Comparison CCM.P-K5 in Differential Pressure From 1 Pa to 1000 Pa

January 1, 2003

Author(s)

A P. Miiller, G Cignolo, M P. Fitzgerald, M P. Perkin, M Sardi, Philip A. Simpson

This report describes a CCM key comparison of low differential-pressure standards at four National Measurement Institutes (NMIs) that was carried out during the...

Analytical Advances in the SEM

January 1, 2003

Author(s)

J H. Scott

The scanning electron microscope (SEM) - when equipped with one or more x-ray spectrometers - is undoubtedly one of the most powerful tools ever devised for the...

Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) for High-Throughput Characterization of Biosurfaces

January 1, 2003

Author(s)

S V. Roberson, A Sehgal, Albert J. Fahey, Alamgir Karim

In this approach, a coated polymer film was exposed to UV-ozone treatment through a variable density filter, producing a surface energy gradient with a...

Effect of Changing the Electrode Gap on the Spatial and Electrical Properties of O₂/CF₄ Plasmas

January 1, 2003

Author(s)

Kristen L. Steffens, Mark A. Sobolewski

Planar laser-induced fluorescence (PLIF) measurements were made to determine 2-D spatial maps of CF2 density as a chemical marker of plasma uniformity in 9% O2...

Indicator Cells Assist the Development of Tissue Engineering Products

January 1, 2003

Author(s)

Anne L. Plant, John T. Elliott, K J. Langenbach

The field of tissue engineering holds great promise. The premise is that living cells can be coaxed to differentiate, organize, and regenerate normal...

Time of Flight Secondary Ion Mass Spectrometry (TOF-SIMS) for High-Throughput Characterization of Bio-Surfaces

January 1, 2003

Author(s)

S V. Roberson, A Sehgal, Albert J. Fahey, Alamgir Karim

A graded oxidation process, involving UV-ozone (UVO) treatment, was used to create a poly(epsilon-caprolactone) (PCL) surface with a systematic variation in...

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