Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Comparison of Tensile and Compressive Creep Behavior in Silicon Nitride

January 1, 2000

Author(s)

K J. Yoon, Sheldon M. Wiederhorn, William E. Luecke

The creep behavior of most commercial grade of Si 3N 4 was studied at 1350 and 1400 C. Stresses ranged from 10 to 200 Mpa in tension and from 30 to 300 Mpa in...

Angle Metrology of Dispersion Prisms

January 1, 2000

Author(s)

William T. Estler, Y H. Queen, Christopher J. Evans

Comparison of Quantum Hall Effect Resistance Standards of the NIST and the BIPM

January 1, 2000

Author(s)

F. Delahay, Thomas J. Witt, Randolph Elmquist, Ronald F. Dziuba

An on-site comparison of the quantum Hall effect (QHE) resistance standards of the National Institute of Standards and Technology (NIST) and of the Bureau...

MOS-Gated Thyristors (MCTs) for Repetitive High Power Switching

January 1, 2000

Author(s)

Stephen B. Bayne, W. M. Portnoy, G. J. Rohwein, Allen R. Hefner Jr.

Early Streamer Emission Lightning Protection Systems: An Overview

January 1, 2000

Author(s)

Richard J. Van Brunt, Thomas L. Nelson, Ken L. Stricklett

Early streamer emission (ESE) lightning protection systems are a relatively new approach to the perennial problem of lightining damage, and these systems may...

Variable Waveform Excitation of Ceramic-Element Transducers for ASTM E127-Type Reference Blocks

January 1, 2000

Author(s)

John A. Slotwinski, Ana Lopez-Sanchez, G V. Sydnor

Apparatus for spin-polarized inverse photoemission and spin scattering

January 1, 2000

Author(s)

T Komesu, C Waldfried, J Hae-Kyung, David P. Pappas, T Rammer, M E. Johnston, T J. Gay, P. A. Dowben

Water Transport in Crosslinked 2-Hydroxyethyl Methacrylate

January 1, 2000

Author(s)

K F. Chou, Charles C. Han, S K. Lee

Water Transport in 2-Hydroxyethyl Methacrylate Copolymer Irradiated by Gamma Rays in Air and Related Phenomena

January 1, 2000

Author(s)

K F. Chou, Charles C. Han, S K. Lee

Determination of the Molecular-Mass Distribution of a Narrow Polydispersity Polystyrene by Maldi-Tof Ms: Interlaboratory Comparison.

January 1, 2000

Author(s)

Charles M. Guttman, S Wetzel, William E. Wallace, William R. Blair, R J. Goldschmidt, David L. VanderHart, B M. Fanconi

Chemical and Structural Characterization of Ultrathin Dielectric Films Using AEM

January 1, 2000

Author(s)

J H. Scott, Eric S. Windsor

The structure of ultrathin silicon oxynitride films, used as gate dielectrics in integrated circuits (ICs), is studied using analytical electron microscopy (AEM...

Factors That Affect Adhesion at the Fiber-Matrix Interface in Composites

January 1, 2000

Author(s)

Gale A. Holmes, E Feresenbet, E Pohl, Walter G. McDonough, D T. Raghavan, D Thompson

The development of methods to assess adhesion at the fiber-matrix interface in composite materials has been driven primarily by the recognition that the...

Thermally Induced Stress Relaxation and Densification of Spin-on-Glass Thin Films

January 1, 2000

Author(s)

C. K. Chiang, William E. Wallace, G W. Lynn, D Feiler, W. Xia

The stress-temperature relationship of silica spin-on-glass thin films on silicon wafers was studied. Upon heating the stress-temperature curves showed a...

Single Fiber Composites: A New Methodology for Determining Interfacial Shear Strength

January 1, 2000

Author(s)

Gale A. Holmes, Donald L. Hunston, Walter G. McDonough, R C. Peterson

One of the critical factors controlling the long-term performance and durability of composites in structural applications is the interfacial shear strength...

LCST Phase Separation in Biodegradable Polymer Blends: Poly(D,L-lactide) and Poly(ε -caprolactone)

January 1, 2000

Author(s)

J C. Meredith, Eric J. Amis

A lower critical solution temperature (LCST) phase transition is reported for blends of the biodegradable polymers poly(D,L-lactide) (PDLA) and poly(ε...

Organic-Inorganic Hybrid Structures with Dendrimers: A Small Angle X-Ray Scattering Study on a Mesoscopic Model System

January 1, 2000

Author(s)

Franziska Grohn, Y A. Akpalu, Barry J. Bauer, Eric J. Amis

Poly(amidoamine) (PAMAM) dendrimers are used to create organic-inorganic hybrid colloids in aqueous solution. The formation of gold colloids upon reduction of a...

Real-Time Dielectric Measurements During Extrusion of Filled Polymers

January 1, 2000

Author(s)

M M. McBrearty, Anthony J. Bur, S C. Roth

Mineral fillers are added to extend and modify physical properties of polymers. To achieve porcessing control of mixing, real-time measurements are needed...

Small-Angle Neutron Scattering of Blends of Arborescent Polystyrenes

January 1, 2000

Author(s)

S M. Choi, R M. Briber, Barry J. Bauer, D W. Liu, M Gauthier

SANS Study of Poly(Benzyl Ether) Dendrimers

January 1, 2000

Author(s)

G Evmenenko, Barry J. Bauer, N Mischenko, B Forier, W Dehaen, R Kleppinger, Eric J. Amis, H Reynaers

Thermal Expansion Coefficients of Low-K Dielectric Films From Fourier Analysis of X-Ray Reflectivity

January 1, 2000

Author(s)

Charles E. Bouldin, William E. Wallace, G W. Lynn, S C. Roth, Wen-Li Wu

Blends of Fatty-Acid-Modified Dendrimers With Polyolefins

January 1, 2000

Author(s)

Barry J. Bauer, A Ramzi, D W. Liu, R L. Scherrenberg, P Froehling, J Joosten

Blends were made by solution and melt mixing fatty acid modified dendrimers with various polyolefins. Small angle neutron scattering (SANS) was used to...

Circularly Polarized Light Emission in Scanning Tunneling Microscopy of Magnetic Systems

January 1, 2000

Author(s)

S Apell, David R. Penn, P Johansson

Light is produced when a scanning tunneling microscopy is used to probe a metal surface. Recent experiments on cobalt utilizing a tungsten tip found that the...

SEMPA Imaging of Domain Dynamics in Amorphous Metals

January 1, 2000

Author(s)

A Gavrin, John Unguris

We show how Scanning Electron Microscopy with Polarization Analysis (SEMPA) may be used to observe domain wall motion in amorphous ferromagnetic ribbons...