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Displaying records 331 to 340 of 401 records.
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331. Stability Phase-Fields in the and Pyrochlore Formation in Sections of the Bi^d2^O^d3^-Al^d2^O^d3-^Nb^d2^O^d5^
Topic: Materials Science
Published: 5/8/2008
Authors: Terrell A Vanderah, Jorge Torres Guzman, Juan C Nino
Abstract: Bismuth niobate-based ceramic materials are of interest for embedded elements such as capacitors, resonators, and filters because they exhibit high relative dielectric permittivities and tend to be processible at temperatures in the 1000 C to 1200 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851101

332. Statistical Calibration of ASTM C150 Bogue-Derived Phase Limits to Directly Determined Phases by Quantitative X-Ray Powder Diffraction
Topic: Materials Science
Published: 7/15/2010
Authors: Paul E Stutzman, Stefan D Leigh
Abstract: Statistical analyses of companion Bogue (ASTM C150) and quantitative X-ray powder diffraction (QXRD) estimates for cement phases are used to establish the most likely linear relationship between these two measurement techniques for alite, belite, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904992

333. Stiffness, strength, and ductility of thin films and membranes ‹ A combined wrinkling-cracking methodology
Topic: Materials Science
Published: 7/15/2011
Authors: Jun Y. Chung, Junghyun Lee, Kathryn L Beers, Christopher M Stafford
Abstract: Polymer membranes are at the core of a diverse set of technologies critical to our global health and security, ranging from energy production to water purification to carbon capture. These engineered membranes must maintain performance over many yea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908241

334. Strength distribution of single-crystal silicon theta-like specimens
Topic: Materials Science
Published: 5/18/2010
Authors: Michael S. Gaither, Frank W DelRio, Richard Swift Gates, Edwin R. Fuller, Robert Francis Cook
Abstract: A new test specimen has been developed for micro-scale tensile strength measurements, allowing direct assessment of surface effects on strength. Specimens were formed by deep reactive ion etching, tested with instrumented indentation, and test resul ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904988

335. Stresses in shape memory polymer-matrix nanocomposites for biomedical applications
Topic: Materials Science
Published: 6/1/2004
Authors: Davor Balzar, G Stefanic, Kenneth Gall, Martin Dunn, Yiping Liu
Abstract: We report on the residual stresses in amorphous shape memory polymers reinforced with SiC particles. After 50 % compression of the composite material at 25 ¿C, the SiC particles exhibit a compressive stress, which is almost completely released during ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50164

336. Strong Casimir force reduction by metallic surface nanostructuring
Topic: Materials Science
Published: 9/27/2013
Authors: Francesco Intravaia, Stefan T. Koev, Il Woong Jung, Albert A. Talin, Paul S Davids, Ricardo Decca, Vladimir A Aksyuk, Diego A. R. Dalvit, Daniel Lopez
Abstract: The Casimir force is a quantum-mechanical interaction arising from vacuum fluctuations of the electromagnetic (EM) field and is technologically significant in micro- and nanomechanical systems. Despite rapid progress in nanophotonics, the goal of e ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910133

337. Structural Study of Ba^d11^Fe^d8^Ti^d9^O^d41^ by X-Ray Diffraction
Topic: Materials Science
Published: 9/1/2000
Authors: T Siegrist, C Svensson, Terrell A Vanderah, Robert S. Roth
Abstract: The crystal structure of Ba^d11^Fe^d8^Ti^d9^O^d41^ was determined using single-crystal and powder X-ray diffraction nethods. This new phase crystallizes in the hexagonal space group P6^d3^/mmc (No 194) (a=5.7506(3) , c=61.413(2) ; Z=2; Pcalc=5.75 g/ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850349

338. Structural changes during the formation of gold single atom chains: stability criteria and electronic structure
Topic: Materials Science
Published: 6/17/2010
Authors: Francesca M Tavazza, Lyle E Levine, Anne M. (Anne M.) Chaka
Abstract: Under tensile deformation, Au nanowires (NWs) elongate to form single atom chains via a series of intermediate structural transformations. These intermediate structures are investigated using semistatic density functional theory (DFT), with particu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903794

339. Structure and Dynamics Studies of Concentrated Micrometer-Sized Colloidal Suspensions
Topic: Materials Science
Published: 1/7/2013
Authors: Fan Zhang, Andrew John Allen, Lyle E Levine, Jan Ilavsky, Gabrielle Gibbs Long
Abstract: We present an experimental study of the structural and dynamical properties of concentrated suspensions of a series of different sized polystyrene microspheres dispersed in glycerol for volume fraction concentrations between 10 % and 20 %. The static ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912414

340. Structure and Microwave Dielectric Properties in the x Ca^d2^AlNbO^d6^: (1-x) Ca^d3^Nb^d2^O^d8^ System
Topic: Materials Science
Published: 2/1/2000
Authors: Julia Y. Chan, Terrell A Vanderah, Robert S. Roth, Winnie K Wong-Ng, B A Reisner, Richard G. Geyer
Abstract: The structure and dielectric properties of bulk ceramics in the xCa2AlNbO6: (1-x)Ca3Nb2O8 system were studied. Ca2AlNbO6 (P21/n, a = 5.3785(1) , b = 5.4158(1) , c = 7.6259(1) , b = 89.93(1)o) is a double perovskite with structure similar to CaTiO3 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850396



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