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WC coatings as candidate to hard chrome plating: characterization of fatigue and friction and wear

Zhou Kesong,Deng Chunming,Liu Min

Strategic Study of CAE 2009, Volume 11, Issue 10,   Pages 48-54

Abstract: The results indicated that both WC-17Co and WC-10Co4Cr coated 300 M steel exhibited comparable fatiguecrack in coating.Fatigue crack in WC coating deflected along the interface between WC coating and 300 M steel; while fatiguecoating, and the volume loss of Al—Ni—Bronze alloy against WC coating was only 1/50~1/100The wear mechanism for WC coating and chrome plating against Al—Ni—Bronze alloy was respectively

Keywords： 300 M steel     high velocity air fuel     WC coating     chrome plating     fatigue     friction and wear    

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Mechanism of methanol decomposition on the Pd/WC(0001) surface unveiled by first-principles calculations

Jinhua Zhang, Yuanbin She

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1052-1064 doi: 10.1007/s11705-019-1908-y

Abstract: In this study, the decomposition of methanol into the CO and H species on the Pd/tungsten carbide (WCThe results reveal that saturated molecules, i.e., methanol and formaldehyde, adsorb weakly on the Pd/WCThus, the most probable methanol decomposition pathway on the Pd/WC(0001) surface is CH OH → CH OH →The present study demonstrates that the synergistic effect of WC (as carrier) and Pd (as catalyst) alters

Keywords： density functional theory     methanol     direct methanol fuel cells     WC(0001)-supported Pd monolayer     decomposition    

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different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co

Jagdeep SINGH,Rajiv Kumar SHARMA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 374-387 doi: 10.1007/s11465-016-0388-8

Abstract: operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co

Keywords： WC     hazard and operability analysis (HAZOP)     discharging     aerosol concentration     dielectrics     powders    

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Anticorrosive composite self-healing coating enabled by solar irradiation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1355-1366 doi: 10.1007/s11705-022-2147-1

Abstract: Herein, we present a composite coating with a self-healing function under easily accessible sunlightO4 nanoparticles serve as a phase-change component and photothermal material in an epoxy coatingFe3O4 nanoparticles endow this composite self-healing coating with good photothermalTherefore, artificial defects created in this type of self-healing coating can be healed by the liquifiedThe healed coating can still serve as a good barrier for the protection of the underlying carbon steel

Keywords： self-healing coating     phase transition     photothermal effect     corrosion protection    

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Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 288-299 doi: 10.1007/s11465-012-0333-4

Abstract: In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported.

Keywords： tungsten carbide composite     wire electrical discharge machining (WEDM)     Taguchi method     grey relational analysis (GRA)     entropy measurement method    

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Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes

Daniel GAONA,Alfredo VALAREZO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 294-300 doi: 10.1007/s11465-015-0351-0

Abstract:

The elastic modulus of a deposit (Ed) can be obtained by monitoring the temperature (?T) and curvature (?k) of a one-side coated long plate, namely, a one-dimensional (1D) deformation model. The aim of this research is to design an experimental setup that proves whether a 1D deformation model can be scaled for complex geometries. The setup includes a laser displacement sensor mounted on a robotic arm capable of scanning a specimen surface and measuring its deformation. The reproducibility of the results is verified by comparing the present results with Stony Brook University Laboratory’s results. The ?k-?T slope error is less than 8%, and the Ed estimation error is close to 2%. These values reveal the repeatability of the experiments. Several samples fabricated with aluminum as the substrate and 100MXC nanowire (Fe and Cr alloy) as the deposit are analyzed and compared with those in finite element (FE) simulations. The linear elastic behavior of 1D (flat long plate) and 2D (squared plate) specimens during heating/cooling cycles is demonstrated by the high linearity of all ?k-?T curves (over 97%). The Ed values are approximately equal for 1D and 2D analyses, with a median of 96 GPa and standard deviation of 2 GPa. The correspondence between the experimental and simulated results for the 1D and 2D specimens reveals that deformation and thermal stress in coated specimens can be predicted regardless of specimen geometry through FE modeling and by using the experimental value of Ed. An example of a turbine-blade-shaped substrate is presented to validate the approach.

Keywords： in-plane     Young’s modulus     curvature temperature     thermal stress     coating    

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Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

Frontiers in Energy doi: 10.1007/s11708-023-0901-9

Abstract: Coating on the interconnector surface is an important approach to inhibit the oxidation and Cr migrationtechnology, atmospheric plasma spraying (APS) and low-pressure plasma spray (LPPS), are adopted for the coating

Keywords： interconnector coating     plasma spray     electrochemical performance     Cr diffusion inhibition     solid oxide    

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Erratum to: Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 876-877 doi: 10.1007/s11708-022-0832-x

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The feasibility of coating by cooling crystallization on ibuprofen naked tablets

Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 211-219 doi: 10.1007/s11705-017-1619-1

Abstract: Sugar spray coating is a frequently used process in the pharmaceutical industry.However, this process presents the disadvantage to form an amorphous coating around the active ingredientA crystalline coating formed on the surface of a tablet is highly desirable.Recently, a new process of coating by cooling crystallization has been developed and applied on bisacodylIn this work, we investigated the feasibility of coating by cooling crystallization on ibuprofen “naked

Keywords： coating     solution crystallization     ibuprofen tablets     sucrose    

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Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1244-1253 doi: 10.1007/s11705-022-2293-5

Abstract: Herein, a synergistic engineering of calcium-ion intercalation and polyaniline coating was developedvanadium pentoxide layers as pillars increase the crystal structure’s stability, while the polyaniline coatingThe vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Keywords： zinc-ion battery     CaV8O20     polyaniline coating     synergistic engineering     high capacity    

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A novel composite coating mesh film for oil-water separation

Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 112-118 doi: 10.1007/s11705-009-0149-x

Abstract: Polytetrafluoroethylene-polyphenylene sulfide composite coating mesh film was successfully prepared by

Keywords： super-hydrophobic     super-oleophilic     composite coating     mesh film     separation of oil and water    

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Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated with mesoporous

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 772-780 doi: 10.1007/s11708-021-0783-7

Abstract: MoS2 is a promising electrocatalyst for hydrogen evolution reaction and a good candidate for cocatalyst to enhance the photoelectrochemical (PEC) performance of Si-based photoelectrode in aqueous electrolytes. The main challenge lies in the optimization of the microstructure of MoS2, to improve its catalytic activity and to construct a mechanically and chemically stable cocatalyst/Si photocathode. In this paper, a highly-ordered mesoporous MoS2 was synthesized and decorated onto a TiO2 protected p-silicon substrate. An additional TiO2 necking was introduced to strengthen the bonding between the MoS2 particles and the TiO2 layer. This meso-MoS2/TiO2/p-Si hybrid photocathode exhibited significantly enhanced PEC performance, where an onset potential of +0.06 V (versus RHE) and a current density of −1.8 mA/cm2 at 0 V (versus RHE) with a Faradaic efficiency close to 100% was achieved in 0.5 mol/L H2SO4. Additionally, this meso-MoS2/TiO2/p-Si photocathode showed an excellent PEC ability and durability in alkaline media. This paper provides a promising strategy to enhance and protect the photocathode through high-performance surface cocatalysts.

Keywords： photoelectrocatalysis     hydrogen evolution     Si photocathode     mesoporous MoS2    

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Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 227-232 doi: 10.1007/s11465-016-0395-9

Abstract: Result showed that the polished coating would resist the asperity contact and remit accumulated damage

Keywords： accumulated damage     spray coating     rolling contact fatigue     acoustic emission    

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Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 256-260 doi: 10.1007/s11705-007-0046-0

Abstract: A new method of preparing CuO solar selective absorbing coating for medium temperature is presented.The optimized condition of preparing CuO coating was obtained.In order to prolong the period of use, the CuO coating was protected by TiO.than CuO coating, without losing absorptivity markedly.The TiO coating can reduce emissivity and protect the CuO coating.

Keywords： photoelectron spectroscopy     temperature     pretreatment     absorptivity     microscopy    

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DOW CORNING 1-2577 Conformal Coating as an efficient diffusion material for cathode in the microbial

Yanping HOU, Haiping LUO, Guangli LIU, Renduo ZHANG, Yong LUO, Bangyu QIN, Shanshan CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 526-530 doi: 10.1007/s11783-013-0532-1

Abstract: In this study, DOW CORNING 1-2577 Conformal Coating was proposed for the cathode diffusion layer of theIn MFCs, stainless steel mesh cathodes using DOW CORNING 1-2577 Conformal Coating/carbon as the diffusionUnder the same operational condition, the MFCs with the DOW CORNING 1-2577 Conformal Coating/carbon diffusionThe DOW CORNING 1-2577 Conformal Coating could be an alternative for the diffusion layer construction

Keywords： microbial fuel cell     diffusion layer     power density     DOW CORNING1-2577 Conformal Coating    

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Title Author Date Type Operation

WC coatings as candidate to hard chrome plating: characterization of fatigue and friction and wear

Zhou Kesong,Deng Chunming,Liu Min

Journal Article

Mechanism of methanol decomposition on the Pd/WC(0001) surface unveiled by first-principles calculations

Jinhua Zhang, Yuanbin She

Journal Article

different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co

Jagdeep SINGH,Rajiv Kumar SHARMA

Journal Article

Anticorrosive composite self-healing coating enabled by solar irradiation

Journal Article

Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

Journal Article

Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes

Daniel GAONA,Alfredo VALAREZO

Journal Article

Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis

Journal Article

Erratum to: Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated

Journal Article

The feasibility of coating by cooling crystallization on ibuprofen naked tablets

Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich

Journal Article

Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Journal Article

A novel composite coating mesh film for oil-water separation

Futao QIN, Zhijia YU, Xinhui FANG, Xinghua LIU, Xiangyu SUN

Journal Article

Enhancing the photoelectrochemical performance of p-silicon through TiO coating decorated with mesoporous

Journal Article

Accumulated damage process of thermal sprayed coating under rolling contact by acoustic emission technique

Jia XU,Zhen-yu ZHOU,Zhong-yu PIAO

Journal Article

Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Journal Article

DOW CORNING 1-2577 Conformal Coating as an efficient diffusion material for cathode in the microbial

Yanping HOU, Haiping LUO, Guangli LIU, Renduo ZHANG, Yong LUO, Bangyu QIN, Shanshan CHEN

Journal Article