Synthesis and microstructural manipulation of ceramics by electrophoretic deposition

Sarkar, Partho; De, D.; Rho, Hongsang

doi:10.1023/b:jmsc.0000012909.46419.0e

Cited by 96 publications

(72 citation statements)

References 7 publications

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“…An important aspect during the EPD process is associated to avoid the cracking of the ceramic coating during drying [44]. During this process, the evaporation of the solvents occurs together with the densification, and the shrinkage of the coatings, but dense substrates do not change on dimensions.…”

Section: Epd Of Steric Stabilized Nano-tin Suspensionsmentioning

confidence: 99%

Improvement of TiN nanoparticles EPD inducing steric stabilization in non-aqueous suspensions

Mendoza

González

Castro

et al. 2016

Journal of the European Ceramic Society

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Abstract:In this work, the process parameters involved in the electrophoretic deposition (EPD) to obtain thin TiN films was studied and optimised. The stability of commercial TiN nanopowder in isopropyl alcohol adding a cationic polymer (polyethylenimine) as dispersant, with different molecular weights, was investigated to determine the kinetics of the deposition and to reach the most efficient EPD process. Cathodic EPD was performed over electro-polished stainless steel substrates. It was found that the provided dispersion when the PEI with the highest molecular weight was added to the suspension, leads to the best deposition behaviour for short times. New flocculation phenomena were described which affect to the sticking factor, and thus to the evolution of the EPD kinetics. As a result of the designed stabilization system, a reliable and versatile EPD method to produce well consolidated nano-TiN coatings at 1200• C in vacuum atmosphere was described.

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Section: Epd Of Steric Stabilized Nano-tin Suspensionsmentioning

confidence: 99%

Improvement of TiN nanoparticles EPD inducing steric stabilization in non-aqueous suspensions

Mendoza

González

Castro

et al. 2016

Journal of the European Ceramic Society

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“…YSZ microtubes were prepared by electrophoretic deposition [15] at the Alberta Research Council labs in Edmonton (Alberta, Canada). Pt electrodes were prepared by painting metal paste (Engelhard, A3788A) on the YSZ discs or tubes.…”

Section: Cell Fabricationmentioning

confidence: 99%

Distortions in Electrochemical Impedance Spectroscopy Measurements Using 3‐Electrode Methods in SOFC. II. Effect of Electrode Activity and Relaxation Times

2007

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The 3‐electrode configuration is commonly applied to quantify the overpotential of anodes or cathodes in solid‐oxide fuel cells (SOFC). In this type of set‐up, a reference electrode (RE) is used to isolate the potential loss of one electrode from that of the entire cell; however, erroneous results can be obtained whenever the RE does not precisely separate the potential drop between the two active electrodes. In this study, we present the results of a theoretical and experimental analysis focused on verifying the effectiveness of the 3‐electrode configuration in electrochemical impedance spectroscopy measurements for the kinetic characterisation of SOFC electrode reactions. The focus of this paper is on the distortion of impedance measurements caused by differences in the area‐specific polarisation resistance and impedance time constants of the working and counter electrodes. The results obtained numerically and experimentally, both for planar and tubular SOFC cell geometries, prove the reliability of the theoretical model used. From the systematic simulation presented here and in our previous work, it was possible to formulate general guidelines for the design of 3‐electrode experimental SOFC. The theoretical model used here can also be used to verify the consistency of EIS measurements obtained with thin planar cells.

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“…A possible explanation for this phenomenon is an electric field drop [69] and is demonstrated in Figure 5.2. This drop in voltage is caused by increasing deposit resistivity during deposition [70]. Since the thickness of the deposits in literature data was not available, a direct influence of the developing resistivity cannot be compared.…”

Section: Deposition Rates and Green Densitiesmentioning

confidence: 99%

The aqueous electrophoretic deposition (EPD) of diamond–diamond laminates

Dzepina

Sigalas

Herrmann

et al. 2013

International Journal of Refractory Metals and Hard Materials

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Synthesis and microstructural manipulation of ceramics by electrophoretic deposition

Cited by 96 publications

References 7 publications

Improvement of TiN nanoparticles EPD inducing steric stabilization in non-aqueous suspensions

Improvement of TiN nanoparticles EPD inducing steric stabilization in non-aqueous suspensions

Distortions in Electrochemical Impedance Spectroscopy Measurements Using 3‐Electrode Methods in SOFC. II. Effect of Electrode Activity and Relaxation Times

The aqueous electrophoretic deposition (EPD) of diamond–diamond laminates

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