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Topic Area: Materials Science
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Displaying records 391 to 400 of 533 records.
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391. Characterization of the In-Plane Structure of Buried Interfaces by Off-Specular X-Ray and Neutron Reflectometry
Topic: Materials Science
Published: 2/14/2008
Authors: Kristopher Lavery, Vivek M Prabhu, Eric K Lin, Wen-Li Wu, Kwang-Woo Choi, Sushil K. Satija, M Wormington
Abstract: Off-specular reflectivity, or diffuse scattering, probes the lateral compositional variations at surfaces and interfaces. Of particular interest is the characterization at buried interfaces for the form and amplitude of roughness. Recent advances i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852736

392. In Situ Ultra-Small-Angle X-Ray Scattering Study of the Solution-Mediated Formation and Growth of Nanocrystalline Ceria
Topic: Materials Science
Published: 1/16/2008
Authors: Andrew John Allen, Vincent A Hackley, P R Jemian, Jan Ilavsky, J M Raitano, S W Chan
Abstract: A remote-controlled isothermal circulating fluid flow cell is described and results presented for the in situ ultra-small-angle x-ray scattering (USAXS) study of solution-mediated systems and suspensions. The fluid flow prevents settling out of coars ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850995

393. Dynamic Force Measurement: Instrumented Charpy Impact Testing
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6652
Topic: Materials Science
Published: 1/1/2008
Authors: Christopher N McCowan, Jolene D Splett, E. Lucon
Abstract: The maximum forces measured by the machines in this round robin are in good agreement. This general result shows that the static force calibration of instrumented strikers is quite robust, and that the various striker designs evaluated here performed ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50616

394. Fast automatic registration of range images from 3D imaging systems using sphere targets
Topic: Materials Science
Published: 1/1/2008
Authors: Marek Franaszek, Geraldine S Cheok, Christoph Johann Witzgall
Abstract: 3D imaging systems are line of sight instruments and multiple scans from different locations are often needed to get a good representation of an entire scene. Therefore, registration of different datasets to a common coordinate system is required. A ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860690

395. ON LINE MONITORING SYSTEM - AN APPLICATION FOR MONITORING KEY WELDING PARAMETERS OF DIFFERENT WELDING PROCESSES
Topic: Materials Science
Published: 11/16/2007
Authors: Thomas Allen Siewert, Ivan Samard¿i¿,, Zvonimir Kolumbi
Abstract: This paper describes the application of an on-line monitoring system for the monitoring, aquisition and processing of key welding parameters. The on-line monitoring system has been successfully applied in practice to measure key welding parameters fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50624

396. Mesoporous Silica Films with Long-Range Order Prepared from Strongly Segregated Block Copolymer/Homopolymer Blend Templates
Topic: Materials Science
Published: 10/24/2007
Authors: Vijay Tirumala, R A. Pai, Sumit Agarwal, Curran Chandler, Gaurav Bhatnagar, Alvin Omang, Eric K Lin, J J. Watkins
Abstract: Well ordered mesoporous silica films were prepared by infusion and selective condensation of Si alkoxides within pre-organized block copolymer/homopolymer blend templates using supercritical CO2 as the delivery medium. The morphologies of mesoporou ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852651

397. Chemical Bonding and Many-Body Effects in Site-Specific X-ray Photoelectron Spectra of Corundum V2O3
Topic: Materials Science
Published: 10/1/2007
Authors: Joseph C Woicik, M Yekutiel, E J. Nelson, N Jacobson, P Pfalzer, L Kronik
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854384

398. Raman Spectroscopy of n-Type and p-Type GaSb with Multiple Excitation Wavelengths
Topic: Materials Science
Published: 10/1/2007
Authors: James E Maslar, Wilbur Scott Hurst, C Wang
Abstract: The interpretation of Raman spectra of GaSb can be complicated by the presence of a so-called surface space-charge region (SSCR), resulting in an inhomogeneous near-surface Raman scattering environment. To fully interpret Raman spectra, it is i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902678

399. Evaluation of Thin Film Mechanical Properties by Means of Electrical Test Methods
Topic: Materials Science
Published: 9/30/2007
Authors: Nicholas Barbosa, Robert R Keller, David Thomas Read, Richard P. Vinci
Abstract: The ability to measure the mechanical properties of thin films and small scale structures is essential in designing reliable components at the micro- and nano-scales. It is known that the mechanical properties of thin film materials deviate from rela ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50339

400. Tunable Ionic-Conductivity of Collapsed Sandia Octahedral Molecular Sieves (SOMS)
Topic: Materials Science
Published: 9/12/2007
Authors: Jason D Pless, Terry J Garino, James E Maslar, Tina M Nenoff
Abstract: The structure-property relationship between atomic cation substitution and bulk scale conductivity in perovskites has been studied systematically. A series of Na-Nb perovskites has been synthesized via two methods (1) ion-exchange or (2) synthetic me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830985



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