Development of electrically conductive plasma sprayed coatings on glass ceramic substrates

Floristán, M.; Fontarnau, R.; Killinger, Andreas; Gadow, Rainer

doi:10.1016/j.surfcoat.2010.05.033

Cited by 29 publications

(14 citation statements)

References 16 publications

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“…Finally, the results presented herein pave a strategy for developing multifunctional coatings for PEMFCs, PEM electrolyzers and redox flow batteries, fostering the use of thermal spraying technique for this purpose. Promising coatings such as TiN (34) and Ti 4 O 7 (35) have been already developed by thermal spraying, albeit never used in these electrochemical applications.…”

Section: Discussionmentioning

confidence: 99%

Improved Water Management with Thermally Sprayed Coatings on Stainless Steel Bipolar Plates of PEMFC

et al. 2015

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We develop a thermally sprayed Ti coating for PEMFC stainless steel (ss) bipolar plates. It is subsequently modified with Au by electro-deposition. SEM reveals that the Au/Ti coating is 30.8 µm thick and rough. The presence of TiO 2 between Ti and Au is negligible, as confirmed by XRD and XPS. Potendiodynamic characteristics in O 2 -saturated 0.5 M H 2 SO 4 show that the Au/Ti/ss samples have comparable corrosion currents to Au/ss but higher corrosion potentials. The interfacial contact resistance (ICR) of Au/Ti/ss is 8.6 mΩ cm 2 under a compaction pressure of 140 N cm -2 . The performances of PEMFCs with Au and Au/Ti are similar at cell voltages higher than 0.75 V. However, at 0.6 V the Au/Ti coating diminishes the current and pressure instabilities of the PEMFC operating under strong flooding conditions. The effect also occurs in the oscillation frequency, confirming the unique property of Au/Ti for reducing the effect of flooding.

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Section: Discussionmentioning

confidence: 99%

Improved Water Management with Thermally Sprayed Coatings on Stainless Steel Bipolar Plates of PEMFC

et al. 2015

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“…Figure 3b shows, under high magnification, that the splats in the melting region have spread completely and are smooth. Some reticular cracks are observed in the melting region, which is caused by the residual thermal stress released at the interface of molten particles during the cooling process of the coating [28,29]. Figure 4 shows the polished cross-section of the whole electrical-heating coating system.…”

Section: Performance Characterization Of Coatingsmentioning

confidence: 99%

Property of TiO2-15MgAl2O4 Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment

Yang

Wang

et al. 2020

Coatings

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Using TiO 2 -15MgAl 2 O 4 mixed powder as spray-feed, an electrical-heating coating was successfully fabricated by atmospheric plasma spraying technology. The phase composition, microstructure, and electrical-heating performance of the coating were characterized by XRD, SEM, and cyclic electrification tests, respectively. The coating samples were heat-treated at 350 • C in a hydrogen atmosphere. The results show that TiO 2 -15MgAl 2 O 4 coating can be heated over 300 • C within 30 m at 55.1 V which preserves heat for a long time. Before heat treatment, the available heating temperature of the coating decreases significantly with electrification cycles. The resistivity of coating rises rapidly during the cyclic electricity test. After hydrogen heat treatment, the electrical-heating property of coatings is significantly enhanced.

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“…The long-term stability of APS Ni-based resistors rendered them excellent candidates for temperature sensors and self-controlled high temperature heaters. Floristán et al [212] have sprayed by APS electrically conductive coatings on a glass ceramic substrate, using TiO 2 and mixed phases of TiO 2 /NiCrAlY. Direct spraying on glass substrates is interesting for industrial applications but the expansion coefficient mismatch is a problem.…”

Section: Air Plasma-sprayed Metal Coatingsmentioning

confidence: 99%

D.C. Plasma Spraying

Fauchais

Heberlein

Boulos

2013

Thermal Spray Fundamentals

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Development of electrically conductive plasma sprayed coatings on glass ceramic substrates

Cited by 29 publications

References 16 publications

Improved Water Management with Thermally Sprayed Coatings on Stainless Steel Bipolar Plates of PEMFC

Improved Water Management with Thermally Sprayed Coatings on Stainless Steel Bipolar Plates of PEMFC

Property of TiO2-15MgAl2O4 Electrical-Heating Coating Prepared by Atmospheric Plasma Spraying and Hydrogen Heat Treatment

D.C. Plasma Spraying

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