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.
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
Marlon L. Walker, David J. Vanderah, Kenneth A. Rubinson
In-situ spectroscopic ellipsometry was used to examine the adsorption of self-assembled monolayers (SAMs) of HS(CH2)3O(CH2CH2O)5CH3 C3(EO)5}, HS(CH2CH2O)6CH3
Samuel Manzello, Alexander Maranghides, John R. Shields, William E. Mell, H Hayashi, Daisaku Nii
The present study reports on a series of real scale fire experiments that were performed to determine the mass and size distribution of firebrands generated
Takashi Kashiwagi, K Winey, Richard H. Harris Jr., John R. Shields, Jack F. Douglas
Recent measurements on polymer nanocomposites filled with multiple-walled carbon nanotubes (MWNT) have indicated that these nanoparticles are highly effective
Takashi Kashiwagi, F Du, K Winey, K M. Groth, John R. Shields, Richard H. Harris Jr., Jack F. Douglas
Flammability properties of PMMA/SWNT nanocomposites were measured. The addition of SWNT significantly reduces mass loss rate of PMMA even for the contents less
Initial tests have been performed to assess detection limits and smoke obscuration monitoring for a video scene under different lighting and smoke concentration
An electrical low-pressure impactor (ELPI) has been used to measure the size distribution of various test smokes and nuisance aerosols generated in the fire
Marc R. Nyden, Jeffrey W. Gilman, Rick D. Davis, John R. Shields
An overview of the research directed at the development and application of high-throughput methods for multi-component polymer blends and nanocomposites that is
The major technical issues regarding the calibration of Surface Scanning Inspection Systems (SSIS) are presented including descriptions of the salient features
Kinetics of heptane combustion was studied through numerical modeling. High temperature kinetic model of heptane combustion was constructed. The model includes
Particle image velocimetry (PIV) measurements in polydisperse sprays have been investigated using Monte Carlo simulations. The objective of the study was to
Takashi Kashiwagi, Jeffrey Fagan, Keith Yamamoto, A N. Heckert, Stefan D. Leigh, Jan Obrzut, F Du, Sheng Lin-Gibson, Minfang Mu, K Winey, R Haggenmueller, Jack F. Douglas
Six PMMA/SWNT(0.5 wt%) nanocomposite samples intended to have different dispersion levels were prepared by the coagulation method using six different
In recent years, increasing interest has been shown in developing and designing slim floor systems in steel-framed buildings. This paper describes the results
The concept of designing buildings to resist loads is fundamental to the design and regulatory process. Fire has traditionally been addressed differently
Mauro Zammarano, S Bellayer, Jeffrey W. Gilman, Massimiliano Franceschi, Frederick Beyer, Richard H. Harris Jr., Meriani Sergio
Layered double hydroxide/polyamide 6 nanocomposites (LDH/PA6) were prepared from organo-modified LDH by melt processing. The anionic exchange capacity of LDH
Rick D. Davis, Jeffrey W. Gilman, Marc R. Nyden, John R. Shields, Richard H. Harris Jr., W Demory
The high throughput mindset has been our approach to rapidly synthesize, characterize, and analyze additive filled polymers. For example, rather than taking a
We propose to develop a new reaction-rate model for nanoscale reaction kinetics, combining the most advantageous features of our Reactive Molecular Dynamics
Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Richard H. Harris Jr., E A. Grulke, J N. Hilding, Jack F. Douglas
Thermal degradation and flammability properties of the two types of nanocomposites with nanosilica and carbon nanotubes were studied. PMMA, poly(metheyl
William E. Mell, Samuel Manzello, Alexander Maranghides, Ronald G. Rehm
Wildfires that spread into wildland-urban interface (WUI) communities present a significant challenge on a number of fronts. In the United States the WUI
Takashi Kashiwagi, John R. Shields, Richard H. Harris Jr., W H. Awad
The thermal and flammability properties of the polyamide 6/clay nanocomposites are measured to determine the flame retardant performance of the nanocomposites
Jeffrey W. Gilman, Rick D. Davis, S Bellayer, P H. Maupin, Raghavan Dharmara, Joseph Langat, S Bourbigot, X Flambard, D M. Fox, Paul C. Trulove, Hugh C. De Long
The development of high throughput methods for studying polymer layered silicate nanocomposites (PLSN) is motivated by the fact that these materials represent a
Jeffrey W. Gilman, Rick D. Davis, John R. Shields, D Wentz, L D. Brassell, A B. Morgan, R Lyon, J E. Zanetto
Recently we have developed several new high throughput (HT) methods to quantitatively evaluate the flammability of flame retarded (FR) polymers. The most recent