Effects of processing conditions on the physico-chemical characteristics of titanium dioxide ultra-thin films deposited by DC magnetron sputtering

Sefideh, Maryam Rezazadeh; Sadeghian, Zahra; Nemati, Ali; Mohammadi, Saman; Mozafari, Masoud

doi:10.1016/j.ceramint.2015.02.142

Cited by 11 publications

(4 citation statements)

References 20 publications

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“…Notably, it is observed that for shorter deposition times carbon-doped TiO 2 tend to form a relatively strongly oriented film structures whereas with the longer deposition time significantly less textured polycrystalline structure is formed. Similar polycrystalline structure growth results using longer formation time were observed by other authors [52,53]. We suggest that such behavior is related to the competing crystallization of two dissimilar TiO 2 phases.…”

Section: Resultssupporting

confidence: 90%

Black carbon-doped TiO2 films: Synthesis, characterization and photocatalysis

Varnagiris

Medvids

Lelis

et al. 2019

Journal of Photochemistry and Photobiology A: Chemistry

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Section: Resultssupporting

confidence: 90%

Black carbon-doped TiO2 films: Synthesis, characterization and photocatalysis

Varnagiris

Medvids

Lelis

et al. 2019

Journal of Photochemistry and Photobiology A: Chemistry

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“…Although the transmittances of titania generally show low values at wavelengths in the region of ultraviolet light (Chen X. et al, 2011), UV light can be transmitted through the titania shells with reduction of the electronic excitations. A previous study found that transmittance through ultrathin films of anatase-type titania rapidly increased for ultraviolet light wavelengths of more than 350 nm (Rezazadeh et al, 2015). In this study, titania particles by the inkjet process hardly showed any excited electrons because of having amorphous structures (Piccinini et al, 2013).…”

Section: Preparation Of a Pd-supporting Tio 2 Catalyst Using The Insimentioning

confidence: 45%

Particle Preparation and Morphology Control with Mutual Diffusion Across Liquid-Liquid Interfaces

Kadota

Shirakawa

2021

KONA

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Advanced functional materials require sophisticated control of particle characteristics. The bottom-up process has been extensively used to produce functional materials for controlling the particle properties of composite particles. We propose crystallization at liquid-liquid interfaces as an advanced particle formation method. This review introduces crystallization at a liquid-liquid interface based on several case studies used in various applications. Conventional crystallization has been generally used to produce crystals and particles with homogeneous particle properties. Liquid-liquid interfacial crystallization makes it possible to create composite particles with hetero-phase structures and interfaces. Liquid-liquid interfacial crystallization with an inkjet technique can control the droplet size accurately, and the shape and particle size distribution are successfully controlled in inorganic-organic composite particles. In addition, we succeed in creating organic-organic composite particles using the interfacial crystallization by an ultrasonic spray nozzle. The coating efficiency of organic particles on the particles is enhanced using the ultrasonic spray nozzle in comparison with anti-solvent crystallization. In this study, the fabrication of inorganic-organic composite particles using a coaxial tube reactor on the liquid-liquid interfacial crystallization is proven successful. These findings suggest that liquid-liquid interfacial crystallization is a promising means of efficiently producing composite particles because of their applicability to infusion in various processes.

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“…Application of high working gas temperature of 400 • C in LPCS resulted in crack-free and thick coating formation with amorphous TiO 2 to the anatase phase transition. According to the literature [263][264][265][266][267][268] amorphous oxides, known as soft ceramics, are exhibiting remarkable plastic deformation at moderate temperatures.…”

Section: Lpcs Ceramic Coatings Applicationsmentioning

confidence: 99%

Advanced Functional Metal-Ceramic and Ceramic Coatings Deposited by Low-Pressure Cold Spraying: A Review

Winnicki

2021

Coatings

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Based on the recent analysis of various databases, cold spray (CS), the newest method among thermal spraying technologies, has received the unabated attention of hundreds of researchers continuously since its invention in the 1980s. The significance of CS lies in the low process temperature, which usually ensures compressive residual stresses and allows for the formation of coatings on a thermally sensitive substrate. This paper concerns the low-pressure cold spray (LPCS) variant employed for forming metal matrix composites (MMCs) with high ceramic contents and all-ceramic coatings. At the very beginning, the influence of LPCS process parameters on deposition efficiency (DE) is analysed. In the next part, the most useful feedstock powder preparation techniques for LCPS are presented. Due to the combination of bottom-up powder production methods (e.g., sol-gel (SG)) with LCPS, the metal matrix that works as a binder for ceramic particles in MMC coatings can be removed, resulting in all-ceramic coatings. Furthermore, with optimization of spraying parameters, it is possible to predict and control phase transformation in the feedstock material. Further in the paper, differences in the bonding mechanism of metal–ceramic mixtures and ceramic particles are presented. The properties and applications of various MMC and ceramic coatings are also discussed. Finally, the exemplary direction of CS development is suggested.

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Effects of processing conditions on the physico-chemical characteristics of titanium dioxide ultra-thin films deposited by DC magnetron sputtering

Cited by 11 publications

References 20 publications

Black carbon-doped TiO2 films: Synthesis, characterization and photocatalysis

Black carbon-doped TiO2 films: Synthesis, characterization and photocatalysis

Particle Preparation and Morphology Control with Mutual Diffusion Across Liquid-Liquid Interfaces

Advanced Functional Metal-Ceramic and Ceramic Coatings Deposited by Low-Pressure Cold Spraying: A Review

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