Results 251 to 260 of about 1,350,570 (299)

Formation of Aluminum Nitrides by Precipitate-Accommodated Plasma Nitriding

MRS Proceedings, 2007
AbstractPrecipitate accommodated nitriding is proposed as a new, non-traditional surface treatment of aluminum alloys. In the case of nitriding the aluminum-copper alloys, Al2Cu plays an important role as a nucleation site to form AlN by the two step reactions of Al2Cu + 2N → 2AlN + Cu and Cu + 2Al → Al2Cu and as a helper to preserve the fast nitrogen ...
Tatsuhiko Aizawa, Patama Vissutipitukul
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Plasma Nitriding Potential and a New Modeling Approach for Plasma Nitriding Process Control

Heat Treating Conference, 2015
Abstract Plasma nitriding is a thermochemical surface heat treatment of steel components to produce nitride layers which increase wear-, corrosion- and fatigue resistance. Research into plasma nitriding lately showed that there is a significant and characteristic amount of ammonia formed off the process gases nitrogen and hydrogen.
Marian Georg Skalecki, Heinrich Klümper-Westkamp, Franz Hoffmann, Hans-Werner Zoch, Sebastian Bischoff, Jörn Rohde   +5 more
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Formation of aluminum nitride by intensified plasma ion nitriding

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1991
Ion nitriding of pure Al with an intensified glow discharge was attempted in the present work. The results showed that formation of aluminum nitride is feasible under low pressure, enhanced plasma conditions. The nitride formed had a dense structure and an ultrafine nuclei size (less than 100 Å).
E. I. Meletis, S. Yan
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The Influence of Plasma Nitriding Period on Nitrided Layers Thickness

Solid State Phenomena, 2016
The plasma nitriding as a technology for finishing of material surface layers was carried out on selected material. The effect of plasma nitriding conditions on the thickness and hardness of nitrided layer was investigated. The influence of plasma nitriding period on the thickness of the plasma nitrided layers was comprehensively assessed on the C55 ...
Ondrej Pilch, Vojtěch Hruby
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Active Screen Plasma Nitriding

AM&P Technical Articles, 2013
Abstract Active screen plasma nitriding and nitrocarburizing are relatively new processes in which a plasma discharge is applied to a metal screen surrounding the workload, generating highly reactive gas species that flow to the component surface.
H.-J. Spies, H. Biermann, I. Burlacov, K. Börner   +3 more
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The Influence of Plasma Nitriding Time on Mechanical Properties of Plasma Nitriding steel

The aim of this study is to investigate the effect of plasma nitriding time on mechanical and tribological behavior of nitriding coatings produced by plasma-assisted chemical vapor deposition (PACVD). The heat treatment of quench and temper was carried out on hot work AISI H12 (DIN 1.2606) steel samples. A group of samples was plasma nitrided at 470 °C
Shafiei, Seyed Mohammad, Raeisifard, Hamed, Tejareh, Sara Sadat   +2 more
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Plasma nitriding of Inconel 625

Surface Technology, 1979
Abstract Inconel 625 was nitrided in an N 2 + H 2 d.c. glow discharge, with the samples of Inconel being bombarded at a high temperature of about 500 °C and a high gas pressure of 3 Torr. Treatment for 10 h under these conditions enhanced the hardness by a factor of about 4.5 compared with the untreated alloy.
A.S. Rizk, D.J. McCulloch
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Plasma Nitridation of Metal Oxides

Chemistry of Materials, 1996
Three binary nitride materials (TiN, AlN, and GaN) were prepared by reaction of a microwave generated nitrogen/hydrogen plasma with TiO2, Al(OH)3, and Ga2O3, respectively.
Joel D. Houmes, Hans-Conrad zur Loye
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Mechanism of germanium plasma nitridation

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 2006
The mechanisms of plasma nitridation of germanium (Ge) and silicon (Si) substrates are discussed based on plasma characteristics and oxynitride film properties. Optical emission spectroscopy (OES) study and x-ray photoelectron spectroscopy were utilized to characterize the plasma and film properties, respectively. In this study, high pressure (1.8Torr)
Takuya Sugawara, Raghavasimhan Sreenivasan, Paul C. McIntyre   +2 more
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Plasma Nitriding Characteristics of Sm2Fe17Nx

Chemistry Letters, 1992
Abstract Nitriding characteristics of Sm2Fe17Nx were studied by applying a plasma technique to Sm2Fe17 in a stream of N2-H2 mixed gas. The reaction took place even at room temperature, but the formation of nitride was limited around the surface region. Some mild heating was required to realize the well-nitriding up to bulk level.
Ken-ichi Machida, Eiji Yamamoto, Kuniaki Murase, Gin-ya Adachi, Masahiro Taniguchi, Ken-ichi Tanaka   +5 more
openaire   +1 more source