The Aerosol Deposition Method: A Modified Aerosol Generation Unit to Improve Coating Quality

Hanft, Dominik; Glosse, Philipp; Denneler, Stefan; Berthold, T.; Oomen, M.P.; Kauffmann-Weiss, Sandra; Weis, Frederik; Häßler, Wolfgang; Holzäpfel, B.; Moos, Ralf

doi:10.3390/ma11091572

Cited by 30 publications

(39 citation statements)

References 30 publications

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“…Typically, an apparatus for the aerosol deposition consist of an aerosol generation unit, a deposition chamber, a nozzle and a vacuum pump. There are various possibilities for aerosol generation [33,34]. In this paper, an aerosol generation system based on a fluidized bed was used.…”

Section: Methodsmentioning

confidence: 99%

Thermal Treatment of Aerosol Deposited NiMn2O4 NTC Thermistors for Improved Aging Stability

Schubert

Münch

Schuurman³

et al. 2018

Sensors

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This paper examines the influence of a short-term thermal treatment of aerosol deposited negative temperature coefficient (NTC) thermistor films on the NTCR characteristics and their long-term stability with different electrode materials. An aerosol deposition of a spinel-based NiMn2O4 powder on alumina substrates with screen-printed AgPd and Au interdigital electrode structures was performed. The manufactured components of the typical size of 1206 were tempered in a moderate temperature range of 200 °C to 800 °C and aged for 1000 h at 125 °C in air. Based on R-T measurements in a high-precision silicone oil thermostat bath and high temperature XRD analyses, the influence of the thermal treatment was analyzed and discussed. A 60-min tempering at 400 °C proved to be optimal, as both the NTCR parameters and their ageing stability could be significantly improved. The findings are explained.

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Section: Methodsmentioning

confidence: 99%

Thermal Treatment of Aerosol Deposited NiMn2O4 NTC Thermistors for Improved Aging Stability

Schubert

Münch

Schuurman³

et al. 2018

Sensors

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“…fluid bed or brush generator). 29,41 At the same time, a constant pressure difference between the aerosol generation unit and the deposition chamber is generated by a vacuum pump. 3 As a result, the generated aerosol is transported into the deposition chamber and is accelerated to a velocity of 100-600 m/s via a nozzle.…”

Section: Setup Of a Pad Device And Process Principlementioning

confidence: 99%

“…The possibility to produce superconducting coatings, especially of magnesium diboride (MgB 2 ), via PAD has already been mentioned several years ago by Akedo et al 88 Since then, several studies investigating this material class have been published. 29,[89][90][91][92] State-of-the-Art to prepare films, bands, or wires of MgB 2 are the so-called powder-in-tubetechnique magnesium diffusion method and the conventional physical vapor deposition. 90 Both techniques need either a well-aligned atmosphere or high temperatures.…”

Section: Superconductorsmentioning

confidence: 99%

“…Due to intensive research in the past years, it is now possible to deposit a large number of ceramic powders on various substrate materials (ceramics, 12,13 metals, 1,14 polymers, [15][16][17]. Besides familiar ceramics for the AD such as Al 2 O 3 , 5,[18][19][20] PZT, 2,17,21 BaTiO 3 , [22][23][24] and TiO 2 , 25 further functional ceramics, [26][27][28][29][30][31][32][33][34] and partly exotic materials, such as lunar regolith, 35 can be deposited today. In addition, more and more powder mixtures are being used.…”

Section: Introductionmentioning

confidence: 99%

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Powder aerosol deposition method — novel applications in the field of sensing and energy technology

Schubert

Hanft

Nazarenus

et al. 2019

Funct. Mater. Lett.

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The Aerosol Deposition (AD) method is a dry spray coating process for the production of dense ceramic coatings at room temperature directly from the ceramic raw powder. In order to avoid confusion with liquid aerosol technology, the term powder aerosol deposition (PAD) is introduced here, to highlight that the aerosol consists only of ceramic powder and carrier gas. Especially in the field of functional ceramics, PAD is a promising alternative to conventional sinter-based production processes. This review focuses on the PAD of functional ceramics in the field of sensing and energy technology. In this context, especially current developments and trends are presented. On the part of the sensors, gas and temperature sensors are especially considered, whereas in the field of energy technology, the focus is on vibration energy harvesting, thermoelectric generators, superconductors, and solar cells as well as on all solid-state batteries and fuel cells. Besides the different applications of PAD films, this review also highlights opportunities for influencing the film properties by the used powder or the process parameters.

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“…Gas recovery and collection of waste powder particles are possible in the vacuum tank [1,25]. Aerosol deposition method (ADM) [27][28][29] is another variation technique similar to VCS. Nanoparticles are propelled by helium or air as a flowing gas in a vacuum chamber.…”

Section: Conceptualization Of Cold Sprayingmentioning

confidence: 99%

A comparative review on cold gas dynamic spraying processes and technologies

Oyinbo

Jen

2019

Manufacturing Rev.

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Cold gas dynamic spraying (CGDS) is a relatively new technology of cold spraying techniques that uses converging-diverging (De Laval) nozzle at a supersonic velocity to accelerate different solid powders towards a substrate where it plastically deforms on the substrate. This deformation results in adhesion to the surface. Several materials with viable deposition capability have been processed through cold spraying, including metals, ceramics, composite materials, and polymers, thereby creating a wide range of opportunities towards harnessing various properties. CGDS is one of the innovative cold spraying processes with fast-growing scientific interests and industrial applications in the field of aerospace, automotive and biotechnology, over the past years. Cold gas spraying with a wide range of materials offers corrosion protection and results in increases in mechanical durability and wear resistance. It creates components with different thermal and electrical conductivities than that substrates would yield, or produces coatings on the substrate components as thermal insulators and high fatigue-strength coatings, and for clearance control, restoration and repairing, or prostheses with improved wear, and produces components with attractive appearances. This review extensively exploits the latest developments in the experimental analysis of CGDS processes. Cold gas dynamic spraying system, coating formation and deposit development, description of process parameter and principles, are summarized. Industrial applications and prospectives of CGDS in future research are also commented.

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The Aerosol Deposition Method: A Modified Aerosol Generation Unit to Improve Coating Quality

Cited by 30 publications

References 30 publications

Thermal Treatment of Aerosol Deposited NiMn2O4 NTC Thermistors for Improved Aging Stability

Thermal Treatment of Aerosol Deposited NiMn2O4 NTC Thermistors for Improved Aging Stability

Powder aerosol deposition method — novel applications in the field of sensing and energy technology

A comparative review on cold gas dynamic spraying processes and technologies

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