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NIST Authors in Bold

Displaying 451 - 475 of 2634

Morphology, Structure, and Nucleation of Out-of-Phase Boundaries (OPBs) in Epitaxial Films of Layered Complex Oxides

February 19, 2017
Author(s)
M A. Zurbuchen, W Tian, X Q. Pan, D Fong, S K. Streiffer, M E. Hawley, J Lettieri, Y Jia, Shengqian Ma, S J. Fulk, D J. Comstock, S Knapp, A H. Carim, D G. Schlom
Out-of-phase boundaries (OPBs) are translation boundary defects characterized by a misregistry of a fraction of a unit cell dimension in neighboring regions of a crystal. Although rarely observed in the bulk, they are common in epitaxial films of layered

Multiscale Roughness and Stability of Superhydrophobic Biomimetic Interfaces

February 19, 2017
Author(s)
Michael Nosonovsky
Stability of a composite interface (CI) of roughness-induced superhydrophobic surfaces is studied. In order to have high contact angle and low contact angle hysteresis, superhydrophobic surfaces should be able to form a CI with air pockets in the valleys

Nanofriction: The Observation of Elastic Plowing

February 19, 2017
Author(s)
Z C. Ying, Stephen M. Hsu
Accurate friction measurement at nanoscale is critical in reliable device design. Literature papers have reported different friction values for the same materials pair when different instruments and tip sizes were used. We have conducted a series of

Nanotechnology--From Promising to Practical: The Role of Standards

February 19, 2017
Author(s)
Stephen W. Freiman
Products based upon nanotechnology represent a potential market for revolutionary new materials, particularly those where one or more dimension is less than 50 nm, e.g., films, carbon nanotubes, nanoparticles. Commercialization of materials such as these

Nanotribology: the Link to Macrotribology

February 19, 2017
Author(s)
Stephen M. Hsu
The study of adhesion, friction, and lubrication at the nanoscale is driven by the needs in niicrosystems, MEMS, and small scale devices. Reliabilitydurability of these devices depend on the ability to control these properties. Furthermore, if fast-moving

Negative Pressure in Water Capillary Bridges at Nanocontacts

February 19, 2017
Author(s)
Seung H. Yang, Michael Nosonovsky, Huan Zhang, Koo-Hyun Chung
Negative Laplace pressure may develop inside a water capillary bridge formed between two bodies and contribute to the force required to pull them apart. Because of the negative pressure, nanoscale water capillary bridges may not be stable. We show that

New Synchrotron X-Ray Techniques for In-Situ Deformation Studies

February 19, 2017
Author(s)
Lyle E. Levine, R Thomson, Gabrielle G. Long, David R. Black
Many types of defects contribute to local and long-range stresses and strains in materials. These include vacancies, voids, prismatic loops, interstitials, inclusions, and dislocations. In most cases, dislocations play the dominant role in minimizing long

NIST Interactive Data Evaluation Assessment Tool

February 19, 2017
Author(s)
R G. Munro
Data evaluation levels provide a means of classifying property data according to how the data were acquired, processed, and reported. The present protocol is based on the seven categories of acceptable data that are discussed in the NIST Recommended

NIST Researcher Highlights Challenges of Talking Ceramics

February 19, 2017
Author(s)
Terrell A. Vanderah
In the last three decades, communications technologieshave been completely transformed by the wirelessrevolution. Devices such as cell phones are now socommon that many consumers are forgoing the hardwiredversions altogether. This remarkable

Nuclear Magnetic Resonance and X-Ray Absorption Spectroscopic Studies of Lithium Insertion in Silver Vanadium Oxide Cathodes

February 19, 2017
Author(s)
N D. Leifer, A Colon, K Martocci, S G. Greenbaum, Faisal Alamgir, T B. Reddy, N R. Gleason, R A. Leising, E S. Takeuchi
Structural studies have been carried out on Ag2V4O11 (silver vanadium oxide, SVO) and LixAg2V4O11, lithiated SVO with x = 0.72, 2.13 and 5.59 using Nuclear Magnetic Resonance (NMR) and X-ray Absorption Spectroscopy (XAS). Lithium-7 NMR indicates the
Displaying 451 - 475 of 2634
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