U.S. flag

An official website of the United States government

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.

Search Publications

NIST Authors in Bold

Displaying 226 - 250 of 1415

Thermal Decomposition of 2-Bromopropene, and 2-Chloropropene

March 24, 2003
Author(s)
K Roy, Iftikhar A. Awan, Jeffrey A. Manion, Wing Tsang
… expressions arek(2-BrC 3 H 5 => propyne/allene + HBr) =10 14.12 exp(-3283OK/T) s -1 k(2-CIC 3 H 5 => propyne/allene + HCI) =10 14.8 exp(-34200K/T) s -1 in the temperature range 1100 to … 1, 2-elimination, bromo-propene, chloropropene, shock tube, …

Solidification of a heterogeneous Multiphase Laves-based Hydrogen Storage Alloy

August 15, 2010
Author(s)
William J. Boettinger, Dale E. Newbury, Ke Wang, Leonid A. Bendersky, Chun Chiu, Ursula R. Kattner, K. Young, B. Chao
The solidification microstructure of a nine-element Zr-Ni based AB(sub 2) type C14/C15 Laves hydrogen storage alloy is determined. The selected composition represents a class of alloys being examined for usage as a metal hydride electrode in nickel metal

High Carrier Mobility Polythiophene Thin Films: Structure Determination by Experiment and Theory

March 19, 2007
Author(s)
Dean M. DeLongchamp, Regis J. Kline, Eric K. Lin, Daniel A. Fischer, Lee J. Richter, Leah A. Lucas, Martin Heeney, Iain McCulloch, John E. Northrup
We exploit the unprecedented crystallinity of poly(2,5-bis(3-alkylthiophene-2-yl)thieno[3,2-b]thiophenes) (pBTTTs) high performance semiconducting polymers to study structural detail within 25 nm thick films of a pBTTT with tetradecyl side chains (pBTTT

Characterization of SiGe Films for use as a National Institute of Standards and Technology (NIST) Microanalysis Reference material (RM 8905)

February 1, 2010
Author(s)
Ryna B. Marinenko, Shirley Turner, David S. Simons, Savelas A. Rabb, Rolf L. Zeisler, Lee L. Yu, Dale E. Newbury, Rick L. Paul, Nicholas W. Ritchie, Stefan D. Leigh, Michael R. Winchester, Lee J. Richter, Douglas C. Meier, Keana C. Scott, D Klinedinst, John A. Small
… films on Si. Alloys with nominal compositions of Si0.86Ge0.14 and Si0.935Ge0.065 and two thick films with nominal … determine the micro- and macroheterogeneity. The Si0.86Ge0.14 alloy and the two films are good microanalysis reference … with an overall expanded heterogeneity uncertainty of 1.1 % relative or less for Ge. Instrumental neutron …

Homogeneous Reduced Moment in a Gapful Scalar Chiral Kagome Antiferromagnet

July 12, 2019
Author(s)
A. Scheie, S. Dasgupta, M. Sanders, A. Sakai, Y. Matsumoto, Timothy R Prisk, S. Nakatsuji, R. J. Cava, Collin L. Broholm
… the scalar chiral magnetic order with in Nd 3 Sb 3 Mg 2 O 14 . Static magnetization reveals a net ferromagnetic ground … coupled nuclear spin reveals a local ordered moment of 1.76(6) υB, just 61(2)% of the saturated moment size. The … for the moment reduction. We compare Nd 3 Sb 3 Mg 2 O 14 to Nd pyrochlores and show that Nd 2 Zr 2 O 7 is in a spin …

Observation of the 1 S 0 - 3 P 0 clock transition in 27 Al +

June 1, 2007
Author(s)
Till P. Rosenband, P. O. Schmidt, David Hume, Wayne M. Itano, Tara M. Fortier, Jason Stalnaker, Scott A. Diddams, Jeroen Koelemeij, James C. Bergquist, David J. Wineland
… We report for the first time, laser spectroscopy of the 1 S 0 – 3 P 0 clock transition in 27 Al + . A single aluminum … to a measurement of the clock transition frequency, Ņ = 1 121 015 393 207 851(8) Hz. They are also used to measure … s, the ground state 1 S 0 g factor, gs = -0.00079248(14), and the excited stated 3 P 0 g factor = -0.00197686(21) …

Space Commerce Workshop Report

May 13, 2020
Author(s)
Michelle S. Stephens, Nicholas Barbosa, Leah R. Kauffman, Rebecca Dorch, Marcus Holzinger
… Special Publication (NIST SP) - 1500-14 …

Intermediate Scale Flame Spread Test Apparatus for CFD Fire Model Validation

March 27, 2025
Author(s)
Karen De Lannoye, Isaac Leventon
… have addressed upward flame spread, both in vertical [1,2] and inclined [3] configurations. Effects of melt flow … NIST Material Flammability Database [7], which contains (1) experimental measurements (mg- and g-scale tests) and … growth experiments for CFD fire model validation. Figure 1 shows a picture of the new setup. Samples, currently 20 cm …
Displaying 226 - 250 of 1415
Was this page helpful?