Results 61 to 70 of about 9,159 (244)

Mechanochemical synthesis of NaNbO3, KNbO3 and K0.5Na0.5NbO3 [PDF]

Science of Sintering, 2005
Mechanochemical synthesis of the K0.5Na0.5NbO3 solid solution (KNN) is studied. In order to explore the mechanochemical interactions between the constituents in the Na2CO3 - K2CO3 - Nb2O5 system, NaNbO3 and KNbO3 as the boundary compositions of the KNN ...
Rojac T., Kosec M., Malič B., Holc J.
doaj   +1 more source

Model‐Based Time‐Modulated Write Algorithm for 1R Analog Memristive Crossbar Arrays

Advanced Electronic Materials, EarlyView.
A novel model‐based time‐modulated write algorithm efficiently programs analog 1R memristive crossbar arrays by varying pulse duration at a fixed voltage. By leveraging a physics‐based compact model and a dynamic gain mechanism, this approach overcomes device nonlinearities and parasitic effects.
Richard Schroedter, Ahmet Samil Demirkol, Ioannis Messaris, Christian Bruchatz, Eter Mgeladze, Stefan Slesazeck, Thomas Mikolajick, Ronald Tetzlaff   +7 more
wiley   +1 more source

Coarsening‐Resistant Ag Sinter Composites: Mechanistic Insights From Different Ag–Additive Systems

Advanced Electronic Materials, EarlyView.
An Ag–WC sintered composite exhibiting superior resistance to thermal coarsening. Different particle‐reinforced Ag sinter composites showed markedly different microstructural responses to thermal aging. The comparison revealed that robust Ag–additive interfaces maintain grain‐boundary pinning, whereas insufficient interfacial stability results in the ...
Yang Liu, Chuantong Chen, Ran Liu, Akitsu Shigetou, Katsuaki Suganuma   +4 more
wiley   +1 more source

A Highly Sensitive Enzyme-Amplified Immunosensor Based on a Nanoporous Niobium Oxide (Nb2O5) Electrode

Sensors, 2010
We report on the development of an enzyme-amplified sandwich-type immunosensor based on a thin gold film sputtered on an anodic nanoporous niobium oxide (Au@Nb2O5) electrode.
Chang-Soo Lee, Dohyoung Kwon, Jeng Eun Yoo, Byung Gun Lee, Jinsub Choi, Bong Hyun Chung   +5 more
doaj   +1 more source

The catalytic effect of additive Nb2O5 on the reversible hydrogen storage performances of LiBH4-MgH2 composite

, 2008
LiBH4-MgH2 composite exhibits excellent reversible hydrogen capacity, but it still presents high decomposition temperature over 350 degrees C and sluggish kinetics.
徐芬, Sun, Li-Xian, 孙立贤, Zhang, Jian, Fan, Mei-Qiang, Xu, Fen, Zhang, Yao, Chu, Hai-liang, 张耀   +8 more
core   +1 more source

A study on phase equilibria in the CaO-Al2O3-SiO2-“Nb2O5”(5 mass pct) system in reducing atmosphere [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2013
Phase equilibria in 5 mass% “Nb2O5” plane of CaO-Al2O3-SiO2-“Nb2O5” system at 1873 K in an oxygen partial pressure of 1.78×10-6 Pa have been investigated through isothermal equilibration and quenching followed by EPMA examinations.
Yan B., Guo R., Zhang J.
doaj   +1 more source

Evaluation of Nb2O5 and Ag/Nb2O5 in the photocatalytic degradation of dyes from textile industries

Brazilian Journal of Chemical Engineering, 2002
The textile industries are distinguished by the use of dyes that are applied to textiles. Dyes are pollutant materials that are difficult to decompose by microbiological treatment. An alternative way to prevent contamination of the environment by dyes is the oxidation of these materials through photocatalysis, a process by which illumination of an ...
Silva, M.K., Marques, R.G., Machado, N.R.C.F., Santos, O.A.A.   +3 more
openaire   +3 more sources

Prediction‐Guided Two‐Step Solid‐State Exploration of Unknown Pseudo‐Ternary Oxides

Advanced Intelligent Discovery, EarlyView.
Prediction‐guided selection combined with two‐step solid‐state exploration enables efficient search of unknown pseudo‐ternary oxides. Broad robotic slurry screening followed by manual single‐phase isolation leads to the discovery of a new oxide, Ba5SnV6O22, showing how data‐guided experiments connect unexplored composition regions to new materials ...
Hiroyuki Hayashi
wiley   +1 more source

F-doped orthorhombic Nb2O5 exposed with 97% (100) facet for fast reversible Li+-Intercalation

Green Energy & Environment
Orthorhombic Nb2O5 (T-Nb2O5) is attractive for fast-charging Li-ion batteries, but it is still hard to realize rapid charge transfer kinetics for Li-ion storage. Herein, F-doped T-Nb2O5 microflowers (F-Nb2O5) are rationally synthesized through topotactic
Xiaodi Liu, Yufeng Tang, Dan Zhang, Guangyin Liu, Xinwei Luo, Yi Shang, Xiu Li, Jianmin Ma   +7 more
doaj   +1 more source

Influence of niobium pentoxide addition on the properties of glass ionomer cements

Acta Biomaterialia Odontologica Scandinavica, 2016
Objective: To determine the influence of niobium pentoxide (Nb2O5) addition on the physical and chemical properties of glass ionomer cements (GICs). Materials and methods: Five, 10 or 20 wt.% of Nb2O5 were incorporated into commercial GICs (Maxxion R ...
Isadora Martini Garcia, Vicente Castelo Branco Leitune, Gabriela De Souza Balbinot, Susana Maria Werner Samuel, Fabrício Mezzomo Collares   +4 more
doaj   +1 more source