Zobrazeno 1 - 10
of 13
pro vyhledávání: '"William J. Heward"'
Publikováno v:
Journal of the American Ceramic Society. 92:511-516
A highly crystalline sample of the impurity stabilized phase y-Y2Si2O7, generally known as yttrialite, has been formed from the melt of a glass with a nominal composition of 62(SiO2)–10(Al2O3)–28(Y2O3) mol%. Powder X-ray diffraction patterns were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec377c273951a4a2543aa6e67a55ec99
https://doi.org/10.1111/j.1551-2916.2008.02916.x
https://doi.org/10.1111/j.1551-2916.2008.02916.x
Publikováno v:
Chemistry of Materials. 20:6277-6283
The effect of Si4+−N3− incorporation on Ce3+ doped RE3Al5O12:Ce3+ (RE = Lu3+, Y3+, or Tb3+) garnet phosphors is described in this report. The addition of Si4+−N3− leads to distinct low-energy Ce3+ absorption and emission bands that are assign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bcf5f083b7d1e4dbc846115f6a38d51
https://doi.org/10.1021/cm801732d
https://doi.org/10.1021/cm801732d
Publikováno v:
ECS Transactions. 7:1207-1216
A-site deficient perovskite powders are commonly used for high- performance SOFC cathodes. Lanthanum strontium ferrite (LSF) powders, with an average composition of (La1-x'Srx')y'FeO3+d, were fabricated with an average strontium composition of x'=0.4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f7f1f92f92f5620061734a9d76e4ab4
https://doi.org/10.1149/1.2729220
https://doi.org/10.1149/1.2729220
Autor:
William J. Heward, D. Swenson
Publikováno v:
Journal of Materials Science. 42:7135-7140
The pseudo-binary In2O3–SnO2 phase diagram has been determined in the range of 1000–1650 °C using electron probe microanalysis (EPMA) and x-ray diffraction (XRD) analysis of solid-state sintered samples. The solubility of SnO2 in In2O3 was found
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dfc9b3a3430ac9bed83954bdf93e7a7
https://doi.org/10.1007/s10853-007-1569-y
https://doi.org/10.1007/s10853-007-1569-y
Autor:
Alok Mani Srivastava, William J. Heward, Anant Achyut Setlur, Madras Venugopal Shankar, R. Gopi Chandran, Yan Gao
Publikováno v:
Chemistry of Materials. 18:3314-3322
In this paper, we describe the formation and luminescence of a new garnet phosphor for light emitting diode (LED) based lighting, Lu2CaMg2(Si,Ge)3O12:Ce3+. The regions for garnet phase formation are initially described with respect to larger rare ear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8264c8affbbb2e6254a75b202e5f96d
https://doi.org/10.1021/cm060898c
https://doi.org/10.1021/cm060898c
Publikováno v:
Journal of Materials Science. 41:3017-3025
An evaporation-assisted templating method was developed for the synthesis of nanostructured europium-doped yttrium oxide (Y2O3:Eu3+, YEO) thin films. The method involves spin-coating a solution containing yttrium salt and block copolymer followed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4a19373f52d0ee1d7050a8e0eb25f28
https://doi.org/10.1007/s10853-006-6769-3
https://doi.org/10.1007/s10853-006-6769-3
Autor:
Lauraine Denault, Seth T. Taylor, Sergio Paulo Martins Loureiro, Anthony Yu-Chung Ku, William J. Heward
Publikováno v:
Microporous and Mesoporous Materials. 88:214-219
Heterogeneous mesoporous oxide structures consisting of adjacent domains of mesoporous titania and silica (TiO 2 /SiO 2 ) were synthesized by sequential deposition into the pores of a porous anodic aluminum oxide (AAO) support. Each anodic alumina ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bad7271790d48201c87fc2c177d822a
https://doi.org/10.1016/j.micromeso.2005.09.010
https://doi.org/10.1016/j.micromeso.2005.09.010
Autor:
Seth T. Taylor, Holly Ann Comanzo, Alok Mani Srivastava, Uwe Happek, William J. Heward, Mohan Manoharan, Sergio Paulo Martins Loureiro, Anant Achyut Setlur, Paul Schmidt
Publikováno v:
Chemistry of Materials. 17:3108-3113
We report on the first observation of quantum splitting effect in nanocrystalline powders of SrAl12O19:1% Pr, Mg. The nanocrystalline materials were prepared using a surfactant-templated-assisted r...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7accf5717d11aaa87c4aee1a9b51f576
https://doi.org/10.1021/cm050394z
https://doi.org/10.1021/cm050394z
Publikováno v:
Journal of Materials Research. 18:2486-2493
This paper describes two spatially resolved analytical techniques for chlorine distribution analysis in high-purity quartz glass. The first, prompt gamma activation analysis (PGAA), to which most of this paper is devoted, is emphasized because a new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2293dac1538df7ef37672d442834f6a6
https://doi.org/10.1557/jmr.2003.0346
https://doi.org/10.1557/jmr.2003.0346
Autor:
Boris Kolodin, Oltea Puica Siclovan, Williams Beers, Linda Jane Valyou Briel, M. Christine Hill, Danny Aesram, Srinath K. Aanegola, William J. Heward, Emil Stoklosa, Anant Achyut Setlur, Cherian Jacob, Robert John Cleaver, Yan Gao, James Edward Murphy, Richard Harlow, Stan Stoklosa, Uwe Happek, Anirudha Deshpande, Robert Joseph Lyons, Claire Susan Henderson, Brent Clothier
The objective of this program is to develop phosphor systems that will enable LED lamps with 96 lm/W efficacy at correlated color temperatures, (CCTs) ~3000 K, and color rendering indices (CRIs) >80 and 71 lm/W efficacy at CCT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a4313b0748380d6d222a2c7f1d56644
https://doi.org/10.2172/992847
https://doi.org/10.2172/992847
