An official website of the United States government
Here’s how you know
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.
Creep experiments were conducted on a commercial grade of silicon nitride (AS800) over a wide range of temperatures and stresses: 1200oC to 1370oC; 50 MPa to...
Tensile-creep measurements by two experimental techniques on two kinds of silicon nitride ceramics were compared statistically. Some of the measurements were...
Larry Robins, J T. Armstrong, Mark D. Vaudin, Charles E. Bouldin, Joseph Woicik, Albert J. Paul, W. R. Thurber, Ryna B. Marinenko
The structures of a set of InxGa1-xN films grown by atmospheric-pressure MOCVD onGaN buffer layers on c-plane sapphire, with compositions in the range 0.04 x ...
First principles based molecular dynamics simulations were performed on a 40^3^ unit cell system of stoichiometry Pb(Sc 1/2Nb 1/2)O 3 (PSN). To imitate a...
P Pei, J Anderson, M C. Bhardwaj, Dennis B. Minor, T Thornton
Green body density measurement techniques were investigated and compared. The measurement techniques investigated include mass-volume measurement, mercury...
Roughness enhances hydrophobicity of a solid surface leading to high contact angles with water. To achieve low contact angle hysteresis along with a high...
Hematopoietic stem cell (HSC) therapy can significantly lower instances of infection in chemotherapy patients by accelerating the recovery of white blood cells...
Over the past few years, there has been increased attention paid by ceramic manufacturers in the United States to environmental issues facing their businesses...
This volume is the fourteenth of the topically-oriented series of phase diagram compilations and the tenth to appear since the National Institute of Standards...
Gateway to the New Millennium was the theme of the 102nd annual meeting of the American Ceramic Society which took place in St. Louis, Missouri from April 29 to...
Proton spin-spin relaxation times (T2) of water molecules in various physical states were measured by nuclear spin-echo sequence. Different pulse sequences for...
Igor Levin, M Stennett, I Reaney, G Miles, D I. Woodward, C Kirk, A R. West
The structure and dielectric properties of a new family of tetragonal tungsten bronze structured ceramics with the general formula, Ba 2ReNb 3Ti 2O 15 (BReNTO...
This report contains the introduction to the proceedings of the 2001 National Educators Workshop, planned for October 16-18, 2001 at NIST. More than one hundred...
The vapor pressure of Mg(g) over MgB 2(cr) for the reaction 2 MgB 2(cr) Mg(g)+MgB 4(cr) has been measured thermogravimetrically from 900 degrees celsius to 1100...
Water molecules interactions in a agarose gel used as a ceramic binder and ceramic blends were studied by proton spin-spin relaxation. Nuclear spin echo signals...
Winnie Wong-Ng, T G. Holesinger, G N. Riley, R Guo
This manuscript is the preface for the proceedings of the focused session 'Perovskite Oxides for Electronic, Energy Conversion, and Energy Efficiency...
The 1999 ACA Annual meeting took place at the Buffalo convention center, New York, from May 22 to 27. This meeting was held in conjucntion with the American...
Julia Slutsker, Igor Levin, Jiying Li, Andrei Artemev, Alexander L. Roytburd
The theoretical and experimental studies of self-assembled multiferroic nanostructures in epitaxial films were combined to reveal the dominant role of elastic...
Specific surface area(SSA) analysis is one of the most common, quick, and inexpensive techniques used in analytical laboratories to characterize a variety of...
D M. Saylor, B S. El-Dasher, B L. Adams, G S. Rohrer
A stereological method is described for estimating the distribution of grain boundary types in polycrystalline materials over the five macroscopically...
Atomic force microscopes (AFM) have been used to measure adhesion at nanoscale between two surfaces. Colloidal probes are often utilized for such measurements...
Winnie Wong-Ng, Igor Levin, Joseph J. Ritter, Lawrence P. Cook, Guangyao Liu, Makoto Otani, Christopher E. Lucas, Shailee P. Diwanji, Ron Feenstra, P Goyal, Mark D. Vaudin
Knowledge of phase relations in thin films of Ba2RCu3O6+x (where R=lanthanides or mixed lanthanides) is needed to guide the processing of coated conductors...
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...
This report summarizes the results of an international round robin study on advanced ceramic powders. Thirty-four laboratories from Belgium, Germany, Japan...
A proof-of-concept study is presented for a new force transducer and associated calibration method that provides a path for quantitative friction measurements...
A brief description of the scientific program of the 1997 Materials Research Society annual meeting which took place in Boston Copley Square from November 31 to...
Crystallography has a long and successful history of self-organization and was one of the first areas to create numerical scientific databases. Virtually all...
Mechanisms of energy dissipation during solid-solid and solid-liquid friction are discussed. A conservative van der Waals adhesion force, when combined with...
S Desogus, A Germak, H Ishida, T Polzin, H Yang, Jun-Feng Song, Samuel Low, David J. Pitchure
Recently developed microform measurement techniques have reduced the measurement uncertainties in the geometry of Rockwell diamond indenters. It is now possible...
The spectrum of rhenium was observed in the (500 to 2100) A wavelength region. A 6.65 m normal incidence VUV spectrograph has been used to record the spectrum...