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In Vitro Evaluation of Zirconia Nanopowders
Key Engineering Materials, 2003ZrO2 is used for a long time as biomaterial. Nanopowders of ZrO2 are prepared via a microwave assisted hydrothermal synthesis and morphological studies carried out by TEM. The powders are tested in vitro and this test does not alter the dimension of the particles.
S. Braccini +4 more
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Oxidation and Melting of Aluminum Nanopowders
The Journal of Physical Chemistry B, 2006Recently, nanometer-sized aluminum powders became available commercially, and their use as potential additives to propellants, explosives, and pyrotechnics has attracted significant interest. It has been suggested that very low melting temperatures are expected for nanosized aluminum powders and that such low melting temperatures could accelerate ...
Mikhaylo A, Trunov +4 more
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Fire and Explosion of Nanopowders
2015This chapter explores the explosion characteristics of nanopowders. Combustible nanopowders have a high likelihood of explosion because of their high specific surface and low threshold limits of ignition energy conditions (high sensitivity) compared to their microscaled counterparts. It is shown that the explosion severity of combustible nanopowders is
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Glass and bioglass nanopowders by flame synthesis
Chemical Communications, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Brunner, Tobias J. +2 more
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2013
Gas-fluidized beds of some nanopowders exhibit a nonbubbling fluid-like behavior as seen for conditioned fine powders. For example, powders of moderate density nanoparticles, such as silica nanoparticles, can be fluidized by a gas in a nonbubbling fluid-like regime.
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Gas-fluidized beds of some nanopowders exhibit a nonbubbling fluid-like behavior as seen for conditioned fine powders. For example, powders of moderate density nanoparticles, such as silica nanoparticles, can be fluidized by a gas in a nonbubbling fluid-like regime.
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Spectroscopy of Eu:YAG nanopowders
physica status solidi c, 2007AbstractYAG:Eu nanopowders were synthesized by a nitrate‐citrate sol‐gel method. The morphologic modifications produced by thermal treatments at various temperatures were monitored by a series of parameters obtained from the optical fluorescence spectroscopy: intensity ratio of the transitions 5D0 → 7F2 and 5D0 → 7F1, the maximum splitting of the 7F1 ...
S. Georgescu +3 more
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Synthesis of MgAl2O4 nanopowders
Inorganic Materials, 2011A procedure has been developed for the synthesis of MgAl2O4 nanopowders with a characteristic particle size of 10–40 nm. Translucent hydrous xerogels have been synthesized as precursors to MgAl2O4. The synthesized magnesium aluminum spinel nanopowders are promising for the fabrication of optical ceramics.
S. V. Kuznetsov +3 more
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2014
Foreword Introduction ESTIMATION OF THERMODYNAMIC DATA OF METALLIC NANOPARTICLES BASED ON BULK VALUES Introduction Thermodynamic Background Size-Dependent Materials Data of Nanoparticles Comparison of Experimental and Calculated Melting Temperatures Comparision with Data for the Entropy of Melting Discusson of the Results Conclusions Appendix NUMERICAL
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Foreword Introduction ESTIMATION OF THERMODYNAMIC DATA OF METALLIC NANOPARTICLES BASED ON BULK VALUES Introduction Thermodynamic Background Size-Dependent Materials Data of Nanoparticles Comparison of Experimental and Calculated Melting Temperatures Comparision with Data for the Entropy of Melting Discusson of the Results Conclusions Appendix NUMERICAL
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Magnetism of Zn0.98Co0.02O nanopowders
Physica B: Condensed Matter, 2010Abstract We prepared Zn 0.98 Co 0.02 O nanopowders by conventional sol–gel method. The powders were sintered at different temperatures. The X-ray diffraction patters showed only wurtzite structure without any impurity phase, better crystalline structure and larger grain size with higher sintering temperature. The magnetic measurements showed that all
Qingyu Xu, Jun Yang
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Luminescence of ZnO nanopowders
Radiation Measurements, 2004Abstract The luminescence of ZnO nanocrystals prepared by different methods was studied under pulsed electron beam excitation. It is shown that the luminescence intensity depends on the nanocrystal sintering conditions and does not depend on the nanocrystal size within the range 10–50 nm.
D. Millers +3 more
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