Results 41 to 50 of about 19,975 (231)

Magnetic phase transition in V2O3 nanocrystals

, 2010
V2O3 nanocrystals can be synthesized through hydrothermal reduction of VO(OH)2 using hydrazine as a reducing agent. Addition of different ligands to the reaction produces nanoparticles, nanorods and nanoplatelets of different sizes.
A. A. Aczel, A. Schenck, E. Andrich, G. M. Luke, J. P. Carlo, L. E. Brus, M. G. Joshi, M. L. Steigerwald, P. W. Stephens, S. J. L. Billinge, S. R. Perkins, T. Suzuki, V. A. Blagojevic, W. Zhou, Y. J. Uemura   +14 more
core   +1 more source

Radiation tolerance of nanocrystalline ceramics: insights from Yttria Stabilized Zirconia. [PDF]

, 2015
Materials for applications in hostile environments, such as nuclear reactors or radioactive waste immobilization, require extremely high resistance to radiation damage, such as resistance to amorphization or volume swelling.
Castro, Ricardo HR, Dey, Sanchita, Drazin, John W, Holesinger, Terry G, Uberuaga, Blas P, Valdez, James A, Wang, Yongqiang   +6 more
core   +1 more source

Structural and biodegradable properties of hydroxyapatite-SiO₂ reinforced MgO bioceramics by dual plasma electrolytic oxidation

Scientific Reports
In the present work, hydroxyapatite (HA) and silicon dioxide (SiO2) were in-situ synthesized in a MgO bioceramic on AZ31 via sequential dual plasma electrolytic oxidation (PEO).
Fariba Momeni, Mohammad Reza Rahimipour, Seyed Mohammad Mousavi Khoei, Asiyeh Habibi   +3 more
doaj   +1 more source

Analysis of Iron Oxide Reduction Kinetics in the Nanometric Scale Using Hydrogen

Nanomaterials, 2020
Iron nanopowder could be used as a sintering aid to water-atomised steel powder to improve the sintered density of metallurgical (PM) compacts. For the sintering process to be efficient, the inevitable surface oxide on the nanopowder must be reduced at ...
Swathi K. Manchili, Johan Wendel, Eduard Hryha, Lars Nyborg   +3 more
doaj   +1 more source

ZnTiO3 ceramic nanopowder microstructure changes during compaction [PDF]

Science of Sintering, 2013
ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded.
Labus N., Krstić J., Marković S., Vasiljević-Radović D., Nikolić M.V., Pavlović V.   +5 more
doaj   +1 more source

The Influence of Al Doping on the Optical Characteristics of ZnO Nanopowders Obtained by the Low-Cost Sol-Gel Method

Chemistry, 2022
In this work, the influence of Al (0, 2, 4, and 6 wt.%) on the optical properties of ZnO has been briefly investigated and described. The undoped and doped samples were characterized using a UV-visible spectrophotometer and Photoluminescence (PL).
Pooja Nag Mishra, Pankaj Kumar Mishra, Dinesh Pathak   +2 more
doaj   +1 more source

Far infrared absorption by acoustic phonons in titanium dioxide nanopowders

, 2006
We report spectral features of far infrared electromagnetic radiation absorption in anatase TiO2 nanopowders which we attribute to absorption by acoustic phonon modes of nanoparticles.
Aymes, Daniel, Liu, Hsiang-Lin, Millot, Nadine, Murray, Daniel B., Netting, Caleb H., Pighini, Catherine, Saviot, Lucien   +6 more
core   +3 more sources

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

Advanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim, Uijung Yong, Myungji Kim, Jaewook Kim, Yeonggwon Jo, In Kyong Shim, Song Cheol Kim, Jinah Jang   +7 more
wiley   +1 more source

Phase Composition and Magnetic Properties of Nanoparticles with Magnetite–Maghemite Structure

Ceramics, 2023
Precipitation of nanopowders with mixed magnetite–maghemite composition was carried out under different conditions and with different separation techniques. The exact character of interactions of different iron oxide phases in the nanopowder was the main
Sergey I. Andronenko, Anton M. Nikolaev, Stanislav M. Suharzhevsky, Alexander A. Sinelnikov, Anastasia S. Kovalenko, Alexandra G. Ivanova, Olga A. Shilova   +6 more
doaj   +1 more source

Properties of the amorphous-nanocrystalline Gd2O3 powder prepared by pulsed electron beam evaporation [PDF]

, 2013
An amorphous-nanocrystalline Gd2O3 powder with a specific surface area of 155 m2/g has been prepared using pulsed electron beam evaporation in vacuum. The nanopowder consists of 20- to 500-nm agglomerates formed by crystalline nanoparticles (3-12 nm in ...
Il'ves, V. G., Sokovnin, S. Y., Uporov, S. A., Zuev, M. G.   +3 more
core   +1 more source