Results 61 to 70 of about 2,634 (290)

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Behavior of Rp3-High Speed Steel on Short Time Nitriding in Fluidized Bed

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2005
For steel nitriding, treatment time is a important factor. Gas and plasma nitriding are usual method to increase surface properties by nitriding. A close retort is used.
Adolf BÂCLEA, Nelu CAZACU, Sorin DOBROVICI, Elena DRUGESCU, Octavian POTECAŞU   +4 more
doaj  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Microstructure and Hardness of High Temperature Gas Nitrided AISI 420 Martensitic Stainless Steel

MATEC Web of Conferences, 2014
This study examined the microstructure and hardness of as-received and nitrided AISI 420 martensitic stainless steels. High temperature gas nitriding was employed to treat the steels at 1200°C for one hour and four hours using nitrogen gas, followed by ...
Ibrahim Nor Nurulhuda Md., Hussain Patthi, Awang Mohktar   +2 more
doaj   +1 more source

Gas pressure sintering of silicon nitride [PDF]

, 1998
The Cooperative Research and Development Agreement (CRADA) with Materials and Electrochemical Research Corp. (MER) examined materials made with different starting {alpha}/{beta}Si{sub 3}N{sub 4} ratios and with the addition of sintering aids as coatings instead of powders.
Tiegs, T. N., Leaskey, L., Loutfy, R. O.
openaire   +2 more sources

Hardness Curves for 31CrMoV9 Steel after Gas Nitriding

, 2017
This work is an experimental study of the hardness curve in the zone of diffusion for the gas nitriding process of 31CrMoV9 steel. 12 samples were subjected to gas nitriding at three different temperatures - 510°C, 550°C, and 590°C - and for each ...
Rama, M., N. Syla, Syla, N., M. Rama, F. Aliaj, Aliaj, F.   +5 more
core   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Effects of Pre-Peening on Fatigue Performance of Gas-Nitrided SCM 440 Steel

Metals
Gas nitriding was implemented in the current work at a constant nitrogen potential (KN) of 2.0 for 8 h to enhance the fatigue properties of SCM 440 steel, and the results were compared with those of the substrate tempered at the nitriding temperature ...
Hao Chen, Tai-Cheng Chen, Wen-Han Chen, Hsiao-Hung Hsu, Leu-Wen Tsay   +4 more
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Estudo da influencia da nitretação e nitrocementação por plasma sobre a redução de porosidade superficial em amostras de ferro puro sinterizado [PDF]

, 1998
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoEstudou-se a influência dos tratamentos de nitretação e nitrocementação por plasma sobre a redução de porosidade superficial em amostras de ferro puro sinterizado.
Oliveira, Adelci Menezes de
core