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Journals

Elastic Modulus Measurements in Plasma Sprayed Deposits

October 12, 2021

Author(s)

Jay S. Wallace, J Ilavsky

A technique has been developed to characterize the elastic modulus of zirconium oxide-8% yttrium oxide plasma sprayed deposits. A commercial hardness indenter...

Critical Behavior of a Strain Percolatin Model for Metals with Unstable Locks

October 12, 2021

Author(s)

Y Shim, Lyle E. Levine, R M. Thomson, M Savage

Using a strain percolatin model proposed for the transport of mobile dislocations through a dislocation cell structure in a deforming metal, we have further...

Laboratory and Field Test Results for an Ultrasonic Applied Stress Measurement Instument

October 12, 2021

Author(s)

P A. Fuchs, A V. Clark, M G. Lozev, U Halabe, P Klinkhachorn, S Petro, H GangaRao

The measurement of applied stress on bridges can provide valuble information on the condition of the structure. The conventional technique for applied stress...

Effects of Aging on Interface Mechanical Properties of Solder Joints of Sn -3.5 Ag and Sn - 3.5 Ag -1.0 Zn Solder Alloys

October 12, 2021

Author(s)

D J. Lee, Chu-Shik Kang, D H. Baek, K K. Lee, Kil-Won Moon, C A. Handwerker

The effects of thickening of intermetallic compound layers formed at the interface and shear properties of solder joints were studied as a function of aging...

c-Axis Oriented Epitaxial BaTiO₃ Films on (001) Si

October 12, 2021

Author(s)

V Vaithyanathan, J Lettieri, W Tian, A Kochhar, H Ma, A Sharan, A Vasudevarao, J. A. Aust, Y Li, Long-Qing Chen, P Zschack, Joseph Woicik

c-axis oriented epitaxial films of the ferroelectric BaTiO3 have been grown on (001) Si by reactive molecular-beam epitaxy (MBE). The orientation relationship...

Hydraulically Pumped Cone Fracture in Bilayers With Brittle Coatings

October 12, 2021

Author(s)

H Chai, Brian R. Lawn

An earlier FEM analysis of inner cone cracks in monolithic brittle solids subject to cyclic indentation in liquids is extended to include the case of a brittle...

Damage Maps for Impacts at a Multilayered Plate by a Rigid Nanoasperity

October 12, 2021

Author(s)

Tze J. Chuang, Stephen M. Hsu

Jamming in Carbon Nanotube Suspensions

October 12, 2021

Author(s)

D J. Fry, Haonan Wang, Erik K. Hobbie

The 'phase diagram' of a non-Brownian carbon nanotube suspension is measured as a function of concentration, shear stress, and geometrical confinement. We...

Effects of Bond Coat Surface-Roughness on Residual Stresses of Thermal Barrier Coating Systems

October 12, 2021

Author(s)

C H. Hsueh, J Haynes, M Lance, P Becher, M Ferber, Stephen A. Langer, W Carter, W R. Cannon, Lin-Sien H. Lum

The adherence of plasma-sprayed thermal barrier coatings (TBCs) is dependent on mechanical interlocking at the interface between the ceramic top coat and the...

Influence of Molecular Structure of Fluorescent Probe on Sensitivity for Cure Monitoring of Bonding Resin

October 12, 2021

Author(s)

K Komatsu, Francis W. Wang, K Nemoto

The structure of a fluorescent probe's rotating group is expected to affect the sensitivity of its response to the resin microviscosity. The purpose of this...

Barkhausen Signal Response as the Mechanical Properties of LC, ULC, and HSLA Sheet Steels are Changed by Straining

October 12, 2021

Author(s)

G Adam, G E. Hicho, L Swartzendruber

Magnetic measurements were conducted on as received and strained samples taken from LC, HSLA, and ULC sheet steels. ASTM tensile samples were loaded in...

Histopathological Reactions of Calcium Phosphate Cement for Alveolar Ridge Augmentation Containing Hydroxyapatite-Coated Implants in Dog Mandibles

October 12, 2021

Author(s)

A Sugawara, K Fujikawa, S K. Kusama, Shozo Takagi, Laurence Chow

Previous studies have shown that a calcium phosphate cement (CPC), consisting of tetracalcium phosphate and dicalcium phosphate anhydrous, was highly...

Low Dielectric Constant Nanocomposite Thin Films Based on Silica Nanoparticle and Organic Thermosets

October 12, 2021

Author(s)

Q Lin, Stephen Cohen, Lynne Gignac, Brian Herbst, David Klaus, Eva Simonyi, Jeffrey Hedrick, John Warlaumont, Hae-Jeong Lee, Wen-Li Wu

Low dielectric constant (low-k) nanocomposite thin films have been prepared by spin coating and thermal cure of solution mixtures of two organic low-k thermoset...

Analytical and Numerical Analyses for Two-Dimensional Stress Transfer

October 12, 2021

Author(s)

C H. Hsueh, P Becher, Lin-Sien H. Lum, Stephen A. Langer, W Carter

Both analytical modeling and numerical simulations were performed to analyze the stress transfer in platelet-reinforced composites in a two-dimensional sense...

The Growth of Giant Magnetoresistance Films on Silicon Substrates: Opportunites, Challenges, and Impediments

October 12, 2021

Author(s)

William F. Egelhoff Jr., Robert McMichael, P J. Chen, W. Wyatt Miller, D Barak, Cedric J. Powell

One of the most promising opportunities in the rapidly emerging field of spintronics is the integration of ultrathin magnetic films on Si substrates for the...

Assessment of the Completeness of Engineering Ceramic Materials in the ICDD;s PDF

October 12, 2021

Author(s)

C R. Hubbard, Winnie Wong-Ng, J Rodgers

For over forty years the International Center for Diffraction Data (ICDD) has maintained an effort to prepare high quality x-ray reference powder diffraction...

Surface Treatment of Mercury Free Alloys

October 12, 2021

Author(s)

S B. Geiger, D Gurbatov, M P. Dariel, F Eichmiller, R Liberman, M Ratzker

Finishing and polishing methods were examined for two metallic direct restorative materials being proposed as possible alternatives to amalgam, namely a gallium...

Characterization of Elastomeric Blends by Atomic Force Microscopy

October 12, 2021

Author(s)

P Achalla, Jennifer L. McCormick, T Hodge, C Moreland, P Esnault, Alamgir Karim, H Raghavan

The bulk mechanical properties of a blend of elastomers are found to depend on the micro and nano scale morphology of the phases of the materials in the blend...

Chemical Analysis of HfO₂/ Si (100) Film Systems Exposed to NH₃ Thermal Processing

October 12, 2021

Author(s)

Patrick S. Lysaght, Joseph Woicik, Daniel A. Fischer, Gennadi Bersuker, Joel Barnett, Brendan Foran, Hsing-Huang Tseng, Raj Jammy

Nitrogen incorporation in HfO2/SiO2 films utilized as high-k gate dielectric layers in advanced metal-oxide field-effect transistors (MOSFETs) has been...

Internal Stress Storage in Shape Memory Polymer Nanocomposites

October 12, 2021

Author(s)

Kenneth Gall, Davor Balzar

Quantitative Characterization of the Contrast Mechanisms of Ultra-Small Angle-X-Ray Scattering Imaging

October 12, 2021

Author(s)

F Zhang, Gabrielle G. Long, Lyle E. Levine, Jan Ilavsky, P R. Jemian

We offer a general treatment of X-ray imaging contrast for Ultra-Small Angle X-ray Scattering (USAXS) imaging that makes use of phase propagation and dynamic...

Microstructural Evolution in Lead-Free Solder Alloy. Part II: Directionally Solidified Eutectic Tin-Silver-Copper, Tin-Copper and Tin-Silver Alloys.

October 12, 2021

Author(s)

S L. Allen, M R. Notis, R R. Chromik, Richard P. Vinci, D J. Lewis, Robert J. Schaefer

The tin-silver-copper eutectic is a three-phase eutectic consisting of Ag(sub3)Sn plates and Cu(sub6)Sn(sub 5) rods in a (Sn) matrix. It is thought that the two...

NiO: A Charge Transfer or Mott-Hubbard Insulator

October 12, 2021

Author(s)

T M. Schuler, D L. Ederer, S Itza-Ortiz, G T. Woods, T A. Callcott, Joseph Woicik

Using site-specific soft x-ray emission and absoroption spectroscopy in conjunction with site-specific x-ray photoelectron spectroscopy, we measure the...

Special Features Regarding the Certification of Highly Particulated and/or Porous Reference Materials

October 12, 2021

Author(s)

Katherine Meyer, B Rohl-Kuhn, Dennis B. Minor, P Klobes

Porous and / or finely particulated materials are of growing importance in many fields of technological application. Despite some traditionally used or newly...

Subsolidus Phase Relationships in the AO-AI₂O₃-Nb₂O₅(A=Ca, Sr) Systems

October 12, 2021

Author(s)

Julia Y. Chan, Wilma Feb-Ayala, J. M. Loezos, L D. Rotter, Lyle E. Levine, Richard G. Geyer

Dielectric ceramics for wireless communications exhibiting modest permittivity, high quality factor (Q), and near-zero temperature coefficient are needed for...

Space Charge Characterization for the 21st Century

October 12, 2021

Author(s)

G Damamme, C LeGressus, A S. DeReggi

The various methods of characterizing insulating materials by their ability to take up charge, retain it, and release it are reviewed critically in search of...

Comparative Dielectric Behavior of PBFe_1/2Ta_1/2O₃ and NaNbO₃:Gd Relaxor-Like Crystals

October 12, 2021

Author(s)

I P. Raevski, S A. Prosandeev, U Waghmare, V V. Eremkin, V G. Smotrakov, V A. Shuvaeva

Experimental data obtained for PBFe 1/2Ta 1/20 3 (PFT) and NaNbO 3:Gd (NaNbGd) single crystals show a diffused dielectric permittivity peak that is inherent to...

Model for Dispersion Rheology

October 12, 2021

Author(s)

J Bicerano, Jack F. Douglas, D A. Brune

A general model of the viscosity of complex-shaped particle dispersions is developed based on an exact virial expansion about the low concentration limit and a...

Applications of Giant Magnetoresitance Spin-Valve Transpinnor for Magneto-Electronics

October 12, 2021

Author(s)

S E. Bae, S Zurn, William F. Egelhoff Jr., P J. Chen, E J. Torok, R Spitzer, J H. Judy

This paper discusses the applications of a Transpinnor, a new kind of active solid-state device utilizing giant magnetoresitance (GMR) spin valves, for the...

Characterization of New 5M and 7M Polytypes of Niobia-Doped Ca₂Ta₂O₇

October 12, 2021

Author(s)

I E. Grey, Robert S. Roth, W G. Mumme, J Planes, Leonid A. Bendersky, C Li, J Chenavas

Two new calcium tantalate polytypes have been prepared in the system Ca2Ta2O7-Ca2Nb2O7. Their structures have been determined and refined using single crystal X...

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