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Journals

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...

Thermal Limits on Field Alignment of Nanoparticle FePt Media

October 12, 2021

Author(s)

J A. Bain, William F. Egelhoff Jr.

We derive a simple expression for the angular distribution of ferromagnetic FePt particles an applied field in thermal equilibrium. This system is closely...

Viscous Flow Creep in Ceramics Containing Secondary Crystalline Phases

October 12, 2021

Author(s)

Q Jin, D S. Wilkinson, G C. Weatherly, William E. Luecke, Sheldon M. Wiederhorn

Experimental observations of the creep response of a Y 20 3-fluxed Si 3N 4 containing secondary crystalline phases(SP)are presented.The widths of grain-boundary...

Advances in Magnetometry Through Miniaturization

October 12, 2021

Author(s)

A Edelstein, J Burnette, Greg Fischer, S F. Cheng, William F. Egelhoff Jr., Robert McMichael, E Nowak

Recent innovations may lead to magnetic sensors that are smaller, more sensitive and/or cost less than current magnetometers. Examples of this are the chip...

Structure Refinement of the High-Temperature Triclinc Form of BiTaO₄ From Neutron Powder Diffraction

October 12, 2021

Author(s)

P DeSanto, Winnie Wong-Ng, Zhi Yang, Jeremy C. Cook, B H. Toby

The structure of the high-temperature form of BiTaO4 has been refined using neutron powder diffraction data. The unit cell is triclinic, P (Sp. Gr. #2) with a =...

Morphology Dependence of Ultrafast Emission From Metal-Dendrimer Nanocomposites

October 12, 2021

Author(s)

O Varnavski, T Goodson, F Groehn, Barry J. Bauer, Eric J. Amis

We report the results of ultra-fast fluorescence investigations from gold-dendrimer nanocomposites of different morphologies. Femtosecond depolarized emission...

Temperature Effects on Surface Pattern Formation in Thin Block Copolymer Films

October 12, 2021

Author(s)

A P. Smith, Jack F. Douglas, Eric J. Amis, Alamgir Karim

Hole formation on the surface of thin films of symmetric diblock copolymers is investigated as a function of time, t, temperature, T, and film thickness, h. The...

Homological Metrics for Microstructure Response Fields in Polycrystals

October 12, 2021

Author(s)

Lin-Sien H. Lum, D M. Saylor, Thomas Wanner

Quantitative homological metrics are proposed for characterizing the thermal-elastic response of calcite-based polycrystals. The characterization is based on...

Towards Optimization of Patterned Superhydrophobic Surfaces

October 12, 2021

Author(s)

Bharat Bhushan, Michael Nosonovsky, Yong C. Jung

Experimental and theoretical study of wetting properties of patterned Si surfaces with cylindrical flat-top pillars of various sizes and pitch distances is...

Composition Control of Low-Volatile Solids Through Chemical Vapor Transport Reactions I. Theory of Non-Destructive Vapor Transport

October 12, 2021

Author(s)

A Y. Zavrazhnov, I D. Zartsyn, A V. Naumov, V P. Ziomanov, Albert Davydov

A new method is proposed for controlling the composition (nonstoichiometry) of low-volatile inorganic compounds. It is based on the introduction/elimination of...

Challenging Some Free - Energy Reduction Criteria for Grain Growth

October 12, 2021

Author(s)

S G. Srinivasan, John W. Cahn

Laboratory experiments on wedge shaped bicrystalline specimens ahve provided much insight into grain-boundary migration [for example: Rath and Hu, Trans. AIME...

Evanescent Wave Fluorescence Fiber Optic Sensor for Flow Monitoring in Liquid Composite Molding

October 12, 2021

Author(s)

S R. Kueh, S G. Advani, Richard~undefined~undefined~undefined~undefined~undefined Parnas

On-line sensing can play an important part in controlling the quality of the final product in any manufacturing environment, including liquid composite molding...

Asymmetric Enhanced Intermixing in Co/Ti Bilayer

October 12, 2021

Author(s)

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

Low-energy ion-beam intermixing has been studied by Auger depth profiling and by molecular dynamics simulations in Co/Ti and Ti/Co bilayers. The agreement...

The Crystal Chemistry of L-Ta₂O₅ and Related Structures

October 12, 2021

Author(s)

I E. Grey, W G. Mumme, Robert S. Roth

Single crystals of a new form of L-Ta2O5 with a 19 x b superstructure have been synthesised by flux growth. The phase has C-centred monoclinic symmetry with a =...

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