Influence of the precursor solution chemistry on the deposition of thick coatings by spray pyrolysis

Weber, Sophie B.; Lein, Hilde Lea; Grande, Tor; Einarsrud, Mari‐Ann

doi:10.1016/j.surfcoat.2013.01.027

Cited by 14 publications

(10 citation statements)

References 19 publications

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“…Additionally, there are several factors that may affect the properties of sprayed pyrolyzed films [21][22][23][24][25][26]. For instance, Arca et al reported that the type of precursor salt and the solvent influence the surface morphology of ZnO films and, therefore, their optical properties [25].…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity

Portillo-Vélez

Bizarro

2016

Journal of Nanomaterials

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There is an increasing interest on the application of ZnO nanorods in photocatalysis and many growth methods have been applied, in particular the spray pyrolysis technique which is attractive for large scale production. However it is interesting to know if the nanorod morphology is the best considering its photocatalytic activity, stability, and cost effectiveness compared to a nonoriented growth. In this work we present a systematic study of the effect of the precursor solution (type of salt, solvent, and concentration) on the morphology of sprayed ZnO films to obtain nanoflakes and nanorods without the use of surfactants or catalysts. The surface properties and structural characteristics of these types of films were investigated to elucidate which morphology is more favorable for photocatalytic applications. Wettability and photocatalytic experiments were carried out in the same conditions. After UV irradiation both morphologies became hydrophilic and achieved a dye discoloration efficiency higher than 90%; however, the nanoflake morphology provided the highest photocatalytic performance (99% dye discoloration) and stability and the lowest energy consumption during the synthesis process. The surface-to-volume ratio revealed that the nanoflake morphology is more adequate for photocatalytic water treatment applications and that the thin nanorods should be preferred over the large ones.

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Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity

Portillo-Vélez

Bizarro

2016

Journal of Nanomaterials

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“…The example of such cracking in mono-and multilayered lanthanum zirconate coatings deposited onto substrate heated to 280°C and postspray-treated at 575°C was presented by Weber et al (2013) and is shown in Figure 5.6. The processes of solvent evaporation and reaction of pyrolysis take place on the heated substrate.…”

Section: Microstructure Of Films and Coatings Synthesized By Solutionmentioning

confidence: 99%

“…Thermal conductivity versus temperature of coatings obtained by spray pyrolysis byWeber et al (2013) and by SPPS byJadhav et al (2006).…”

mentioning

confidence: 99%

Application of solution precursor spray techniques to obtain ceramic films and coatings

Pawłowski¹

2015

Future Development of Thermal Spray Coatings

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“…In high-speed, high-temperature, and heavy-load [4], as well as other extreme environments [5,6], thin solid films were good solutions. And varies researches and designs were carried out for different coatings in different mechanical components [7], followed the interest of tribo-pairs with layered structure for their service life and reliability [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Evaluation of Interface Mechanics for Thin Films using the Method of Image

Nie

Zheng

et al. 2016

MATEC Web of Conferences

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Abstract. The evaluation of interface mechanics was very useful for the design of thin solid film. According to the method of image, interface stresses and deformations of coating-substrate system were gained. Using this mathematical calculation model, the indentation test data was carried out and the results were analysed. Based on the mechanical model and test, the critical state of interface stresses from elastic deformation to plastic yield was evaluated. From experimental and calculating results, interface shear stress and normal stress had different affecting level for the coating failure under the same surface load. And a fitting relationship equation for the two stresses was also gained to determining the failure value in designing. The method of this paper could be used for thin film interface mechanics design and evaluation.

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Influence of the precursor solution chemistry on the deposition of thick coatings by spray pyrolysis

Cited by 14 publications

References 19 publications

Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity

Sprayed Pyrolyzed ZnO Films with Nanoflake and Nanorod Morphologies and Their Photocatalytic Activity

Application of solution precursor spray techniques to obtain ceramic films and coatings

Analysis and Evaluation of Interface Mechanics for Thin Films using the Method of Image

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