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Conferences

Applications of Ceramics for Healthcare: The Future Has Begun

February 19, 2017

Author(s)

Grady S. White

Dramatic improvements in our understanding of how biological systems work, diseases initiate, and illnesses progress have given rise to the expectation that...

Strain-Induced Ferroelectric SrTiO₃ Thin Films Grown Coherently on Si(001): Experiment and Theory

February 19, 2017

Author(s)

Joseph Woicik, Eric L. Shirley, Daniel A. Fischer, S Sambasivan, C R. Ashman, C S. Hellberg, H Li

Ferroelectric crystals possess an electric dipole moment even in the absence of an external electric field. In order for this spontaneous polarization to arise...

Influence of Particle Size on DCPD Hydrolysis and Setting Properties of TTCP/DCPD Cement

February 19, 2017

Author(s)

Limin Sun, Laurence C. Chow, Shozo Takagi, Elena F. Burguera, Stanislav Frukhtbeyn

This study investigated the effects of particle size on the hydrolysis reaction of DCPD at pH 7 and 37 C and on the setting properties of a TTCP/DCPD cement...

Thermal Diffusivity of AIN Using the Photothermal Deflection Technique

February 19, 2017

Author(s)

E J. Gonzalez

The thermal conductivity of AIN specimens doped with Y2O3(5 wt.%) was determined using the photothermal deflection technique. The results agree within 10% of...

Role of Melting Equilbria in the Processing of High T-c Superconductors in the BSCCO System

February 19, 2017

Author(s)

Winnie Wong-Ng, Lawrence P. Cook, Anthony J. Kearsley, A R. Roosen

Three types of liquids were found in the BSCCO system: transient, metastable, and stable liquids. The roles of these liquids are discussed with examples...

Versatile USAXS (Bonse-Hart) Facility for Advanced Materials Research

February 19, 2017

Author(s)

J Ilavsky, P Jemain, Andrew J. Allen, Gabrielle G. Long

The USAXS facility at UNICAT Sector 33 at the Advanced Photon Source (APS) is a world-class resource for advanced materials research emphasizing full-range...

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...

Enhancement of Mercuric Iodide Detector Performance Through Crystal Growth in Microgravity: The Roles of Lattice Order

February 19, 2017

Author(s)

B W. Steiner, L van den Berg, U Laor

The hole mobility and carrier lifetime of [alpha] mercuric iodide high energy radiation detectors have been enhanced through crystal growth in microgravity. The...

Phase Equilibria of the High Tc Superconductors in the (Bi, Pb) -SR-Ca-Cu-O System

February 19, 2017

Author(s)

Winnie Wong-Ng, Lawrence P. Cook, W Greenwood, Anthony J. Kearsley

Applications of (Bi,Pb)-Sr-Ca-Cu-O phase equilibria include material synthesis, melt processing and single crystal growth. Both liquidus and subsolidus data are...

Transient Creep Cavity Growth in Structural Ceramics

February 19, 2017

Author(s)

A F. Bower, Tze J. Chuang

Long-term service life of a load-bearing ceramic component such as a turbine blade atelevated temperatures is often controlled by the rates of nucleation and...

Development of Multilayer Analyzer Array Detectors for X-Ray Fluorescence at the Third Generation Synchrotron Source

February 19, 2017

Author(s)

K Zhang, G Rosenbaum, R Liu, G Bunker, C Y. Liu, Daniel A. Fischer

The development of Multilayer Analyzer Array Detector (MADD) for X-ray fluorescence is to eliminate the count rate limitation encountered with the multi-element...

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...

The Effect of Plowing on Nanofriction

February 19, 2017

Author(s)

Stephen M. Hsu, Z C. Ying

Development of low friction surfaces has become an important issue for the development of reliable devices with moving components. The common way to measure...

Elastic Anomaly in SrTiO3 Thin Films Grown on Si(001)

February 19, 2017

Author(s)

Joseph Woicik, F S. Aguirre-Tostado, A Herrera-Gomez, R Droopad, D G. Schlom, P Zschack, E Karapetrova, P Pianetta

Effect of Colloidal Probe Random Surface Features on Adhesion

February 19, 2017

Author(s)

Seung H. Yang, Stephen M. Hsu

We have uncovered the fact that colloidal probes often have random surface features which when not properly accounted for, can significantly affect the...

Boundary Lubricated Friction Experiments With Coarse Surface Texture

February 19, 2017

Author(s)

Jorn Larsen-Basse, L K. Ives, Stephen M. Hsu

Low-speed friction experiments were conducted under boundary lubrication in a pin-on-disk tester. The 304 stainless steel disk had smooth areas alternating with...

Effects of Large Grains on Transgranular Fracture Toughness

February 19, 2017

Author(s)

Stephen W. Freiman

This paper addresses issues of fracture for materials in which large grains, exist in a matrix of much smaller grains. Materials used for optical components...

Imaging Optics and CCD Camera Characterization for Metrology

February 19, 2017

Author(s)

S Fox, Edward A. Kornegay, Richard M. Silver

Optical semiconductor characterization and metrology rely heavily on digital camera imaging and its associated optical imaging systems. This work characterizes...

Assessment of a 3D-Printed Aluminum Corrugated Feed Horn at 118.7503 GHz

February 19, 2017

Author(s)

Josh Gordon, David R. Novotny, Ronald C. Wittmann, Michael H. Francis, Jeffrey R. Guerrieri, Periasamy Lavanya, Albin Gasiewski

All-metal 3D printing is investigated as a viable option for millimeter wave applications. 3D printing is finding applications across many areas and may be a...

Spin Coherence, Condensation, and Superfluidity

February 17, 2017

Author(s)

Ezio E. Iacocca, Thomas J. Silva, Mark Hoefer

Wind Effects on Flame Spread and Ember Spotting Near a Structure

February 6, 2017

Author(s)

Kathryn M. Butler, Erik L. Johnsson, Marco G. Fernandez, Mariusz Zarzecki, Glenn P. Forney, Eric Auth

In wildland-urban interface (WUI) fires, combustible materials pose a potential threat to contiguous or nearby structures. Flame spread and firebrand spotting...

Exposing Fencing Assemblies to Firebrand Showers Characteristic of Burning Structures

February 5, 2017

Author(s)

Samuel Manzello, Sayaka Suzuki, Ichiro Hagiwara

Wildland-Urban Interface (WUI) fires have devastated communities on multiple continents. Large outdoor fires in Japan mainly occur due to post-earthquake fires...

Micro-Signatures: The Effectiveness of Known Bad N-Grams for Network Anomaly Detection

February 5, 2017

Author(s)

Richard Harang, Peter Mell

The field of intrusion detection is divided into signature detection and anomaly detection. The former involves identifying patterns associated with known...

Fire-blocking Performance of Laminated Barrier Fabrics: Cone Calorimetric Characterization

February 4, 2017

Author(s)

Shonali Nazare, William M. Pitts, John R. Shields

The fire blocking performance of barrier fabrics laminated to upholstery materials was investigated. The results are two-fold. The first involves information...

Full Disk Encryption: Bridging Theory and Practice

February 3, 2017

Author(s)

Louiza Khati, Nicky Mouha, Damien Vergnaud

We revisit the problem of Full Disk Encryption (FDE), which refers to the encryption of each sector of a disk volume. In the context of FDE, it is assumed that...

A comparison of NTP servers connected to the same reference clock and the same network

January 31, 2017

Author(s)

Andrew N. Novick, Michael A. Lombardi

Network Time Protocol (NTP) servers maintained by national timing laboratories are ideally synchronized to a one pulse-per-second (pps) signal from the official...

The development of a new Kalman-filter time scale at NIST

January 31, 2017

Author(s)

Jian Yao, Thomas E. Parker, Judah Levine

We report on a preliminary design of a new Kalman-filter Hydrogen-maser time scale at NIST. The time scale is composed of a few Hydrogen masers and a Cs clock...

A Study on Using the SDR Receiver for the Europe-Europe and Transatlantic TWSTFT Links

January 31, 2017

Author(s)

Victor S. Zhang, Thomas E. Parker, Joseph Achkar, Dirk Piester, Yi-Jiun Huang, Shinn-Yan Lin, Zhiheng Jiang

The BIPM and the CCTF Working Group on TWSTFT have stimulated a pilot study on using software defined radio (SDR) receivers for TWSTFT in the framework of the...

Long-term instability in UTC time links

January 31, 2017

Author(s)

Victor S. Zhang, Demetrios Matsakis, Zhiheng Jiang

Calibration and link stability are the key issues for the UTC time transfer. This study is made in the framework of a joint task group of the CCTF Working Group...

Trapped-ion optical atomic clocks at the quantum limits

January 31, 2017

Author(s)

David R. Leibrandt, Samuel M. Brewer, Jwo-Sy Chen, Aaron M. Hankin, David B. Hume, David J. Wineland, Chin-Wen Chou

Frequency and its inverse, time, are the most accurately measured quantities. Historically, improvements in the accuracy of clocks have enabled advances in...

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