Results 81 to 90 of about 1,350,570 (299)

Properties of stainless-steel surface after hollow cathode assisted plasma nitriding

open access: yesMaterials Research Express, 2020
AISI 304 stainless steel was nitrided at different temperature in the plasma equipment using a new auxiliary device. The proposed hollow cathode auxiliary device improves the plasma density, thereby accelerating the nitriding process.
Zhehao Zhang   +6 more
doaj   +1 more source

RF Plasma Nitriding of Titanium.

open access: yesJournal of the Surface Finishing Society of Japan, 1993
RF plasma nitriding of titanium was carried out at different temperatures and electric potentials of the samples, at 1.0-1.3 Torr in mixtures of nitrogen and hydrogen gases. The addition of hydrogen to nitrogen increased the nitriding rate and the hardness of the nitrogen diffusion layer.
MAEKAWA, Hideaki, AKASHI, Kazuo
openaire   +2 more sources

Estudo do processo de sinterização de compactados de ferro em descarga elétrica na configuração ânodo-cátodo confinado [PDF]

open access: yes, 2001
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.A sinterização por plasma é processada em descarga elétrica em regime anormal, à baixa pressão (3 - 12 Torr) e mistura gasosa composta por um gás reativo (hidrogênio) e um gás ...
Lawall, Ivani Teresinha
core  

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

open access: yesAdvanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski   +5 more
wiley   +1 more source

Estudo experimental da nitretação em ligas Fe-C e nitrocementação no ferro puro por plasma / [PDF]

open access: yes, 1998
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro ...
Borba, Elenice Cavichioli
core  

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

open access: yesAdvanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim   +5 more
wiley   +1 more source

Caracterização eletroquimica e metalografica de aços sinterizados e nitretados [PDF]

open access: yes, 1996
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Análise da resistência à corrosão de produtos fabricados via metalurgia do pó empregando a sinterização e a nitretação por plasma.
Sobral, Ana Vladia Cabral
core  

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

open access: yesAdvanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg   +15 more
wiley   +1 more source

Comportamento eletroquimico e caracterização microestrutural dos aços sinterizados e nitretados por plasma contendo MO e Ni [PDF]

open access: yes, 1997
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.A fabricação de produtos via metalurgia do pó (M/P) é amplamente empregada na indústria, porém em aços sinterizados a presença de poros residuais ...
Parente, Ana Cristina Boblitz
core  

Reactivity‐Guided Janus Graphene With Asymmetric Interfacial Electrostatics for Tunable Charge Transport

open access: yesAdvanced Materials, EarlyView.
Stepwise dual‐side functionalization creates covalent Janus graphene with chemically and electrostatically asymmetric interfaces. The resulting nonadditive surface‐potential response and pronounced charge‐transport modulation demonstrate a versatile route for tailoring the electronic properties of graphene.
Shishi Liu   +14 more
wiley   +1 more source

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