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Displaying 1 - 25 of 1911

Determining phosphors' effective quantum efficiency for remote phosphor type of LED modules

December 1, 2010
Author(s)
Arno Keppens, Yuqin Zong, Yoshi Ohno, Geert Deconinck, P. Hanselaer
… Without any doubt remote phosphor type of light-emitting diodes (LEDs) are gaining … the high luminous efficiency in comparison with proximate phosphor type of LED devices and the improved spatial color … to determine the effective quantum efficiency of remote phosphors as a function of phosphor temperature and pump …

Interacting nanoscale magnetic cluster arrays in molybdenum oxide bronzes

May 26, 2017
Author(s)
Joseph A. Hagmann, Son T. Le, Lynn F. Schneemeyer, Joseph A. Stroscio, Tiglet Besara, Theo Siegrist, Curt A. Richter, David G. Seiler
… ternary molybdates in the family of rare earth molybdenum bronzes produced by electrochemical synthesis with … assemblages to the rich structural chemistry of molybdenum bronzes. … magnetism, molybdenum bronzes, bronzes, molybdenum oxides, oxides, clusters, nanocrystals …

A Coherent Approach for Interrogating Polybenzoxazole Fibers for Residual Phosphoric Acid

September 17, 2009
Author(s)
Gale A. Holmes, Eun S. Park, Charles M. Guttman, Kathleen M. Flynn, John R. Sieber, Stephanie S. Watson, Kirk D. Rice
… fibers, it is suspected by many researchers that residual phosphoric acid causes the degradation of the benzoxazole … definitive data has been given to indicate the presence of phosphoric acid since the residual phosphorus is not easily … be due to the octadecyl phosphate processing aid with some phosphoric acid being detected. The phosphorus that is not …

Tool Wear and Surface Finish in High Speed Milling Aluminum Bronze

January 1, 2001
Author(s)
Matthew A. Davies, Kate Medicus, Christopher J. Evans, Brian S. Dutterer, R S. Fielder
… Aluminum bronze C95800 is used extensively for the manufacture of … Tool wear rates for the high speed machining of aluminum bronze are assessed using three metrics: mean force, flank … speeds such that material removal rates in aluminum bronze were increased more than ten fold over current …

Tool Wear and Surface Finish in High Speed Milling of Aluminum Bronze

January 1, 2001
Author(s)
Kate Medicus, Matthew A. Davies, Brian S. Dutterer, Christopher J. Evans, R S. Fielder
… Aluminum bronze C95800 is used extensively for the manufacture of … Tool wear rates for the high speed machining of aluminum bronze are assessed using three metrics: mean force, flank … speeds such that material removal rates in aluminum bronze were increased more than ten fold over current …

A METHODOLOGY FOR DETECTING RESIDUAL PHOSPHORIC ACID IN POLYBENZOXAZOLE FIBERS

November 24, 2009
Author(s)
Eun S. Park, John R. Sieber, Charles M. Guttman, Kirk D. Rice, Kathleen M. Flynn, Stephanie S. Watson, Gale A. Holmes
… or humidity. Recently, it was suggested that residual phosphoric acid left during the processing of poly[(benzo … hypothesis. In this study, we tried to identify residual phosphoric acid in PBO fibers in an effort to understand the … Ballistic fiber, Phosphoric acid, Polybenzoxazole, X-ray fluorescence, Gas …

A Study of the Surface Texture of Polycrystalline Phosphor Films Using AFM

January 1, 1994
Author(s)
Zsolt R?vay, J Schneir, D Brower, John S. Villarrubia, Joseph Fu, et al
… Stimulable phosphor thin films are being investigated for use as optical … in the film. This is not the case for the stimulable phosphor films used in our study. We have determined the grain size of our phosphor films by transmission electron microscopy (TEM) and …

Ordered Structure and Thermal Expansion in Tungsten Bronze Pb 2 K 0.5 Li 0.5 Nb 5 O 15

August 12, 2014
Author(s)
Kun Lin, Yangchun Rong, Hui Wu, Qingzhen Huang, Li You, Yang Ren, Longlong Fan, Jun Chen, Xianran Xing
… and thermal expansions of a new tetragonal tungsten bronze (TTB) ferroelectrics Pb 2 K 0.5 Li 0.5 Nb 5 O 15 were … Thermal expansion, tungsten bronze, ordering, crystal structure … Ordered Structure and Thermal Expansion in Tungsten Bronze Pb 2 K 0.5 Li 0.5 Nb 5 O 15 …

Subsolidus Phase Relations and Dielectric Properties in the SrO-Al 2 O 3 -Nb 2 O 5 System

February 1, 2000
Author(s)
Julia Y. Chan, Igor Levin, Terrell A. Vanderah, Richard G. Geyer, Robert S. Roth
… ternary compounds, Sr 4 AlNbO 8 and Sr 5.7 Al 0.7 Nb 9.3 O 30 , were observed to form in addition to the known double … Nb 9+x O 30 , x=0.3) forms with the tetragonal tungsten bronze structure (P4bm; a=12.374(1), c=3.8785(1) ), melts … X-ray powder diffraction data are given. The tungsten bronze structure exhibits a narrow region of stability in the …

Phase Equilibria and Crystal Chemistry in the BaO-Al 2 O 3 -Nb 2 O 5 and BaO-Nb 2 O 5 Systems

November 1, 2002
Author(s)
Terrell A. Vanderah, B C. Collins, Winnie K. Wong-Ng, Robert S. Roth, L Farber
… is limited to one new phase, Ba 5.75 Al 0.75 Nb 9.25 O 30 (Ba 6-x Al 1-x Nb9+xO30, x=0.25; P4bm (No. 100); … a=12.558(1), c=3.9708(3) ), with a tetragonal tungsten bronze (TTB) type structure, and solid solutions of 1-2 mol% … 5 system from 25 to 41 mol% BaO. Ba 5.75 Al 0.75 Nb 9.25 O 30 exhibited an ambient dielectric constant of 242 according …

Rattling Behavior in a Simple Perovskite NaWO 3

May 1, 2019
Author(s)
Yuya Ikeuchi, Hiroshi Takatsu, Cedric Tassel, Craig Brown, Taito Murakami, Yuki Matsumoto, Yoshihiko Okamoto, Hiroshi Kageyama
… has allowed the preparation of stoichiometric tungsten bronze NaWO 3 (Im-3). Specific heat (C ; /T 3 vs T) exhibits a round peak at 30 K, indicating anharmonic phonon modes associated with … Chemistry, Perovskite phases, Rattling, Tungsten bronze, neutron diffraction …

Structural Investigation of the "Tripled-Tetragonal-Tungsten-Bronze" Phases Sr2M10-xO27-y (M = Nb, Ta)

September 15, 2019
Author(s)
Justin B. Felder, Winnie Wong-Ng, Rania A. Qabbani, Brian H. Toby, Julia Chan
… and Sr2Ta10-xO27-y exhibit the tripled tetragonal-tungsten-bronze (TTTB)-related superstructures. In contrast to … Tripled tetragonal-tungsten-bronze (TTTB), X-ray and neutron diffraction, structure, … Investigation of the "Tripled-Tetragonal-Tungsten-Bronze" Phases Sr2M10-xO27-y (M = Nb, Ta) …

Image Plates for Registration of Far-Ultraviolet Spectra

February 1, 2000
Author(s)
Joseph Reader, Craig J. Sansonetti, R Deslattes
… We have tested an autoradiographic photostimulable phosphor image storage plate as a medium for recording … by the scanner that reads the stored image from the phosphor plate, but this limitation is not fundamental. These … UV, image plate, spectral response, spectroscopy, storage phosphor …

Certification Report for the Reference Materials ERM-AE142 and ERM-EB400 A pure Pb solution and a bronze material, both certified for their Pb isotope amount ratios

July 1, 2016
Author(s)
Jochen Vogl, Dorit Becker, Maren Koenig, Yong-Hyeon Yim, Kyoung-Seok Lee, Heidi Goenaga-Infante, Dmitriy Malinowskiy, Sarah Hill, Tongxiang Ren, Jun Wang, Robert D. Vocke Jr., Karen E. Murphy, Naoko Nonose, Olaf Rienitz, Janine Noordmann
… and which offer SI traceability. ERM-EB400 is a bronze material characterized for its Pb isotopic … Lead Isotopes, Pb in Water, Pb in Bronze, Pb Isotope Amount Ratios, CCQM Key Comparison K98, … Materials ERM-AE142 and ERM-EB400 A pure Pb solution and a bronze material, both certified for their Pb isotope amount …

Measurement of Heat Conduction Through Stacked Screens

July 1, 1997
Author(s)
T Kuriyama, F Kuriyama, Michael A. Lewis, Ray Radebaugh
… experiments consisted of 400-mesh stainless steel and phosphor bronze screen was 25.4 υm and the 325-mesh stainless steel … was about 0.1 for the stainless steel and 0.022 for the phosphor bronze and almost constant for the temperature range …

Strain and Magnetic-Field Characterization of a Bronze-Route Nb 3 Sn ITER Wire: Benchmarking of Strain Measurement Facilities at NIST and University of Twente

June 1, 2012
Author(s)
Najib Cheggour, Arend Nijhuis, H J. Krooshoop, Xifeng Lu, Jolene D. Splett, Theodore C. Stauffer, Loren F. Goodrich, Matthew C. Jewell, Arnaud Devred, Y Nabara
… and the University of Twente. The critical current of a bronze-route Nb 3 Sn wire, which was fabricated for the … Twente used a bending beam (“Pacman”) apparatus. The ITER bronze-route wire investigated had a very high irreversible … Strain and Magnetic-Field Characterization of a Bronze-Route Nb 3 Sn ITER Wire: Benchmarking of Strain …
Displaying 1 - 25 of 1911
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