Results 31 to 40 of about 1,097 (264)

Electrochemical characteristics and damage mechanism in scrubber washing water of UNS N08367 with plasma ion nitriding and electropolishing

npj Materials Degradation
In this investigation, electropolishing and plasma ion nitriding are applied to super austenitic stainless steel for the purpose of improving its corrosion and pitting resistance.
Hyun-Kyu Hwang, Seong-Jong Kim
doaj   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Pembentukan Titanium Nitrida (TiN) dengan Proses Nitriding pada Titanium Murni Menggunakan Plasma Densitas Tinggi

Rekayasa Mesin, 2017
Pure titanium has been widely utilized in industry but its products suffered from low wear and erosion resistance. The plasma nitriding was selected as a tool to harden the pure titanium products but typically high temperature processing was required to ...
Josephine Maria Windajanti, Dionysius Joseph Djoko Herry Santjojo, Abdurrouf Abdurrouf   +2 more
doaj   +1 more source

Acquired Properties Comparison of Solid Nitriding, Gas Nitriding and Plasma Nitriding in Tool Steels [PDF]

Materials Research, 2015
Plasma nitriding, gas nitriding and solid nitriding were applied in tool steels (AISI H13, AISI P20 and N-8550). The acquired properties were compared and evaluated on these three processes with the aim to verify the solid nitriding performance. In order
Elisangela Aparecida dos Santos de Almeida, Júlio César Giubilei Milan, César Edil da Costa   +2 more
doaj   +1 more source

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source

Micro Abrasive Wear Behaviour Study of Carburization and Ion Plasma Nitriding of P20 Steel [PDF]

Materials Research, 2016
P20 steel, which is mainly used in plastic molds, was thermochemically treated by ion plasma nitriding and solid and gas carburization. In this work, the solid and gas carburization were performed at 925 ºC for four different durations.
Henrique Solowej Medeiros Lopes, Jeferson Aparecido Moreto, Marcos Dorigão Manfrinato, Nilson Cipriano da Cruz, Elidiane Cipriano Rangel, Luciana Sgarbi Rossino   +5 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

İYON (PLAZMA) NİTRÜRLEMENİN SERT METAL PLAKET TAKIMLARIN SERBEST YÜZEY AŞINMASINA ETKİSİ

Havacılık ve Uzay Teknolojileri Dergisi, 2004
Plasma (ion) nitriding is one of the widely used advanced surface hardening method applied especially to steels. Ion nitriding has been used for some components were used in the automotive industry and in cutting tools manufacturing.
Ufuk Özdemir, Muzaffer Erten, Turgut Gülmez   +2 more
doaj  

Corrosion Behavior of Nitrided Ni3Al Intermetallic Alloy in 0.5 M H2SO4

International Journal of Electrochemical Science, 2018
The effect of plasma nitriding on the corrosion behavior of Ni3Al intermetallic alloy in 0.5 M H2SO4 solution at 60 0C has been investigated by using potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and linear ...
E. Tapia-Bahena, H. Martinez, J. Porcayo-Calderon, J.G. Gonzalez-Rodriguez, L. Martinez-Gomez   +4 more
doaj   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source