The influence of incorporating MgO into Ni-based cermets by plasma spraying on anode microstructural and chemical stability in dry methane

Lay, Elisa; Metcalfe, Craig; Kesler, Olivera

doi:10.1016/j.jpowsour.2012.06.106

Cited by 11 publications

(11 citation statements)

References 29 publications

(22 reference statements)

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“…The chemistry of solution precursors, their concentration and solvent used, determine the characteristics of the resulting coatings [10,[22][23][24][25][26][27][28][29]. The spraying process is accompanied by the decomposition of the precursor at the elevated temperature and high heat transfer of the plasma jet [10,[22][23][24][25].…”

Section: Solution Precursor Preparationmentioning

confidence: 99%

“…The spraying process is accompanied by the decomposition of the precursor at the elevated temperature and high heat transfer of the plasma jet [10,[22][23][24][25]. Lay et al [26] reported the influence of the chemistry of the starting precursors on nickel-based SPPS cermet. They found that nickel-samaria doped ceria (Ni-SDC) has larger quantity of finer particles than nickel-yttria stabilized zirconia (Ni-YSZ) [26].…”

Section: Solution Precursor Preparationmentioning

confidence: 99%

“…In addition, Sanpo et al [15] presented that the utilization of citric acid as chelating agent with 20% concentration significantly favors the formation of more than 90% of cobalt ferrite phase due to chelate effect attributed to an increase in entropy resulting to a more stable composite material [15]. Lay et al, [26] reported the influence of the chemistry of the starting precursors on nickel-based SPPS cermet. They found that nickel-samaria doped ceria (Ni-SDC) has larger quantity of finer particles than nickel-yttria stabilized zirconia (Ni-YSZ) [26].…”

Section: Solution Precursor Preparationmentioning

confidence: 99%

“…Lay et al, [26] reported the influence of the chemistry of the starting precursors on nickel-based SPPS cermet. They found that nickel-samaria doped ceria (Ni-SDC) has larger quantity of finer particles than nickel-yttria stabilized zirconia (Ni-YSZ) [26]. Moreover, Wang et al, [24] reported that the utilization of strontium-doped lanthanum manganite, (La0.8Sr0.2MnO3) as SOFC cathode material shows promising characteristics i.e., high electrochemical activity and thermal stability due to its high operating temperature (>800 °C) compared to Sm0.5Sr0.5CoO3 and La0.6Sr0.4Co0.2Fe0.8O3.…”

Section: Solution Precursor Preparationmentioning

confidence: 99%

“…Nickel-samaria-doped ceria (Ni-SDC) coating displays a microstructure composed of very fine spherical particles having micrometer and nanometer sizes similar to nickel-yttria-stabilized zirconia. The morphology of nickel particles in SPPS was already reported to be very fine, which suggests that its combination with samaria-doped ceria (SDC) does not promote the growth acceleration of the particles [26]. Due to the complex in-flight phenomena and the unique particle morphologies formed during the process, some interesting coatings' microstructures and architectures can be generated in SPPS depending on the set of parameters used [26,33,34,42,[45][46][47].…”

Section: Microstructure Of Cermet Coatingsmentioning

confidence: 99%

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Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Unabia

Candidato

Pawłowski

2018

Metals

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Ceramic and metal composites, known also as cermets, may considerably improve many material properties with regards to that of initial components. Hence, cermets are frequently applied in many technological fields. Among many processes which can be employed for cermet manufacturing, thermal spraying is one of the most frequently used. Conventional plasma spraying of powders is a popular and cost-effective manufacturing process. One of its most recent innovations, called solution precursor plasma spraying (SPPS), is an emerging coating deposition method which uses homogeneously mixed solution precursors as a feedstock. The technique enables a single-step deposition avoiding the powder preparation procedures. The nanostructured coatings developed by SPPS increasingly find a place in the field of surface engineering. The present review shows the recent progress in the fabrication of cermets using SPPS. The influence of starting solution precursors, such as their chemistry, concentration, and solvents used, to the micro-structural characteristics of cermet coatings is discussed. The effect of the operational plasma spray process parameters such as solution injection mode to the deposition process and coatings' microstructure is also presented. Moreover, the advantages of the SPPS process and its drawbacks compared to the conventional powder plasma spraying process are discussed. Finally, some applications of SPPS cermet coatings are presented to understand the potential of the process.

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