Closure to Discussion of “A Multi-Objective Optimization Approach on Spiral Grooves for Gas Mechanical Seals” (Wang, X., Shi, L., Huang, W., and Wang, X., 2018, ASME J. Tribol., 140(4), p. 041701)

Wang, Xiuying; Shi, Liping; Wang, Xiaolei

doi:10.1115/1.4041076

Cited by 123 publications

(179 citation statements)

References 4 publications

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“…The obtained ε r and tand are comparable to the highly (001) oriented KNN films (ε r ¼ 551 and tand ¼ 0.03 at 100 kHz) [56] and slightly lower compared other films prepared using rf magnetron sputtering [57,58]. Wang et al reported the dielectric properties (ε r ¼ 420e660 and tand ¼ 0.026e0.042 at 100 kHz) of Co doped KNN thin films prepared using chemical solution deposition method [59]. Tian et al reported the substrate temperature and crystallographic orientation dependent dielectric properties (ε r ¼ 350e930 and tand ¼ 0.028e0.042 at 1 kHz) of KNN thin films prepared using pulsed laser deposition method [60].…”

Section: Dielectric Propertiessupporting

confidence: 50%

Optical and dielectric studies on radio frequency sputtered Gd2O3 doped K0.5Na0.5NbO3 thin films for nonlinear photonic and microwave tunable device applications

Peddigari

Bharti

Khare

et al. 2016

Journal of Alloys and Compounds

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Section: Dielectric Propertiessupporting

confidence: 50%

Optical and dielectric studies on radio frequency sputtered Gd2O3 doped K0.5Na0.5NbO3 thin films for nonlinear photonic and microwave tunable device applications

Peddigari

Bharti

Khare

et al. 2016

Journal of Alloys and Compounds

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“…BH 4 − , S 2− ) are repelled due to the Donnan exclusion effect, so that nanoparticles are generally formed on the surface of the polymer; on the other hand, neutral reagents (i.e. thioacetamide, formamide) or gases can freely diffuse through the matrix, thus allowing a homogeneous distribution of NPs within the ion‐exchange film . In some cases, however, additional hydration phenomena can occur due to incorporation of NPs themselves and their location might not be consistent with the Donnan exclusion effect⋅…”

Section: Introductionmentioning

confidence: 99%

“…Studies concerning AgNP‐loaded Nafion composites have often been devoted to understand the mechanisms of NPs formation and the effects of the Nafion structure on nanocofinement . Relatively less attention has been devoted to the chemical processes involving the oxidation of metallic silver of the Ag particles and Ag + ion release into the surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

Scanning Electrochemical Microscopy and Voltammetric Investigation of Silver Nanoparticles Embedded within a Nafion Membrane

2016

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In this paper, silver nanoparticles (AgNPs), incorporated in the poly(perfluorosulfonic) acid membrane Nafion® 117, were fabricated by chemical reduction of the Ag+-loaded membranes, using HCOH in a basic medium as reducing agent. The AgNPs content within the membrane varied in proportion of the concentration of AgNO3 used in the incorporation step of Ag+ in the ion-exchange. Information on size and density of the AgNPs within the matrix was obtained by SEM analysis. The size of the AgNPs varied between 10 and 20 nm, regardless of the AgNO3 concentration used for their preparation, while AgNPs density was the higher, the greater was the AgNO3 concentration in the solution. Information on the oxidation state of Ag in the AgNPs and their distribution and aggregation on the surface of the Nafion membranes were obtained by SECM measurements. The use of [Ir(Cl)6]3- and Ru(NH3)63+ as redox mediators allowed establishing whether the AgNPs were interconnected to create nano-chain networks to provide AgNPs-loaded Nafion membranes with electronic conductivity. Moreover, combination of SECM and anodic stripping voltammetry allowed establishing the reactivity of the AgNPs-Nafion composites in terms of Ag(I) species released at the nanocomposite/solution interface. These aspects are relevant for the potential application of these AgNPs-loaded membranes for antimicrobial protection purposes

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“…In previous works, we have successfully prepared super‐thick DLC films by combine of a transition layer, multilayer architecture and silicon doping . The transition layer enhances adhesion of the DLC films, which can reduce the undermining effect from electrolyte .…”

Section: Introductionmentioning

confidence: 99%

Corrosion and tribocorrosion behaviour of super‐thick diamond‐like carbon films deposited on stainless steel in NaCl solution

Wang

et al. 2016

Surface & Interface Analysis

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Super‐thick diamond‐like carbon (DLC) film is a potential protective coating in corrosive environments. In the present work, three kinds of DLC films whose thickness and modulation periods are 4 µm and 3, 21 µm and 17 and 21 µm and 7, respectively, were fabricated on stainless steel. The effect of different thickness and modulation periods on corrosion and tribocorrosion behaviour of the DLC‐coating stainless steel was investigated in 3.5 wt% NaCl aqueous solution by a ball‐on‐flat tribometer equipped with a three‐electrode electrochemical cell. The DLC‐coating stainless steel served as a working electrode, and its OCP and potentiodynamic polarization were monitored before and during rubbing. The wear–corrosion mechanism of the DLC films was investigated by SEM. The results showed that the increasing thickness can prolong significantly lifetime of DLC films in NaCl aqueous solution. In particular, the modulation period has a significant impact on the tribocorrosion resistance of the DLC super‐thick films. The study suggested that the increasing thickness of compressive stress layer could suppress film damage by reducing crack propagation rate. Thus, the super‐thick DLC film with thickness of 21 µm and 7 periods presented the best tribocorrosion resistance among all studied films. Copyright © 2016 John Wiley & Sons, Ltd.

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Closure to Discussion of “A Multi-Objective Optimization Approach on Spiral Grooves for Gas Mechanical Seals” (Wang, X., Shi, L., Huang, W., and Wang, X., 2018, ASME J. Tribol., 140(4), p. 041701)

Cited by 123 publications

References 4 publications

Optical and dielectric studies on radio frequency sputtered Gd2O3 doped K0.5Na0.5NbO3 thin films for nonlinear photonic and microwave tunable device applications

Optical and dielectric studies on radio frequency sputtered Gd2O3 doped K0.5Na0.5NbO3 thin films for nonlinear photonic and microwave tunable device applications

Scanning Electrochemical Microscopy and Voltammetric Investigation of Silver Nanoparticles Embedded within a Nafion Membrane

Corrosion and tribocorrosion behaviour of super‐thick diamond‐like carbon films deposited on stainless steel in NaCl solution

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