Plasma nitriding
Plasma Nitriding of AA2011 Alloy and Surface Characterization by NDT Techniques
... In the nitriding phase, the excited nitrogen species either react with the 𝐴𝑙 atoms on the substrate, or with sputtered 𝐴𝑙 atoms and then deposit on the substrate. After this the nitrogen atoms migrate away from ...
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Nitriding in cathodic cage of stainless steel AISI 316: influence of sample position
... ionic plasma nitriding in which there is a competition between sputtering from the sample surface and ...a nitriding tempera- ture of 623 K, the sputtering rate is ...Thus nitriding for 5 h ...
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Mat. Res. vol.18 número2
... the plasma nitriding experiments, the surfaces of the samples were wet grounded using silicon carbide papers and mechanically polished to a mirror-like ...
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Mat. Res. vol.19 número3
... 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 ...
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Superfícies de titânio modificadas termoquimicamente por plasma : avaliação da resposta biológica
... Alterations to a titanium surface by plasma nitriding may promote changes in surface properties. These properties are related to biological response. In this study, evaluation of the biological response of ...
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Mat. Res. vol.18 número1
... In order to evaluate the properties after the thermochemical treatments, a comparison of the solid, gas and plasma nitriding acquired properties was carried out. The volume of removed material and the ...
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Rev. Esc. Minas vol.66 número2
... the nitriding step without any damage to the part’s ...perature Plasma Nitriding Treatment of austenitic stainless steels, where up to 35 at% of N can be introduced in austenite in solid solution, ...
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Mat. Res. vol.6 número2
... plasma nitriding. Thirteen different sets of operational parameters (nitriding time, sample temperature and plasma atmosphere) were ...conditions: nitriding time of 3 h; plasma ...
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Mat. Res. vol.9 número1
... two plasma assisted processes: Plasma Nitriding and Plasma Immersion Ion Implantation or the combination of both processes to obtain thicker nitrogen implanted ...
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Mat. Res. vol.17 número3
... conventional plasma nitriding and cathodic ...conventional plasma nitriding and nitriding with cathodic cage was ...in nitriding with cathodic ...shown nitriding rates, ...
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Mat. Res. vol.15 número2
... cage plasma nitriding technique (CCPN), with the addition of methane to reduce chromium precipitation, increase hardness and wear resistance and reduce the presence of nitrides when compared to ...
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Efeitos do pneumoperitônio sobre a hemodinâmica e função renais de cães ventilados com volume e pressão controlados.
... clearance, plasma sodium, plasma potas- sium, plasma osmolality, creatinine clearance, filtration frac- tion, urinary volume, urinary osmolality, osmolar clearance, free water clearance, sodium ...
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Mat. Res. vol.19 número5
... characterization of the samples was carried out using optical and scanning electron microscopy in addition to XRD analysis. Microhardness testing was also performed. The XRD analysis showed a stabilization of the ...
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Formação como plasma social
... Mas existe ainda uma terceira possibilidade de compreender a formação nem como privilégio nem como revolução? Existiu e poderia existir. Nomes como Sócrates, os estóicos, os epicureos, nomes como Horácio, Montaigne, ...
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High-beta plasma blobs in the morningside plasma sheet
... The plasma data obtained with the ICI Kistler et ...the plasma pressure, in antiphase with the magnetic pressure, albeit with much smaller relative ...and plasma pressure variations can only be ...
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Mecanismos endócrinos e moleculares pelos quais o estradiol estimula a síntese de...
... (KRISANS, 1996) e transportado na forma de lipoproteínas para todos os tecidos esteroidogênicos. As lipoproteínas podem ser de alta (HDL) ou de baixa densidade (LDL) e constituem as fontes mais comuns de disponibilidade ...
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Formação de plasma no TBR
... bm Serle com eSSaS bobinas são colocadas quatro espiras de conpensação do campo espúrio vertical e radial.. A figura 2-5 mostra o enrola mento do transformador.[r] ...
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Simultaneous decarburizing and nitriding: effects on structure and magnetic properties of 3Si grain-oriented electrical steel
... Grain oriented electrical steel can be manufactured using low slab reheating temperature technology with (Al,Si)N as the main grain growth inhibitor to pro- mote secondary recrystallization during box annealing ...
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en 0103 507X rbti 28 04 0463
... A propensity-matched cohort study with 3,116 hospitalized patients with a systemic inlammatory response syndrome (SIRS) showed that balance crystalloids (Plasma-Lyte or Normosol), compared with 0.9% saline, were ...
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