Oxidation resistance of SiAlCN: H-coatings

Allebrandt, Daniel; Hoche, Holger; Scheerer, Herbert; Broszeit, E.; Berger, Christina

doi:10.1016/j.surfcoat.2006.07.204

Cited by 12 publications

(6 citation statements)

References 13 publications

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“…Mainly ceramics are used as thermal/environmental barrier coatings (TBCs/EBCs) because they are hard, chemically stable, wear-resistant, refractory and oxidation resistant, especially at high temperatures and chemically rough environments. [1][2][3][4] The use of particle filled preceramic polymers to produce ceramic coatings provides several advantages compared to conventional coating processes such as physical vapour deposition, 5 chemical vapour deposition, 6 thermal spraying 7 and sol-gel. 8 Their main advantages are the relatively low processing temperatures and the applicability of well established polymer processing techniques e.g.…”

Section: Introductionmentioning

confidence: 99%

cBN particle filled SiCN precursor coatings

Kraus¹,

Günthner²,

Krenkel³

et al. 2009

Advances in Applied Ceramics

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A polymer derived ceramic composite coating consisting of the polycarbosilazane ABSE (matrix) and cBN (filler) is developed. The final coating thickness is varied by adjusting the withdrawal speed, the viscosity of the solution and the pyrolysis temperature. The coatings exhibit excellent adhesion to the substrate confirmed by cross-cut and bending tests. The environmental barrier properties of the coatings were investigated with static, isothermal oxidation experiments testing coated and uncoated steel substrates. It was revealed that the weight gain during oxidation was strongly reduced by coating the substrates and hence the coatings offer the possibility to enhance the lifetime and performance of steel substrates under rough conditions.

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Section: Introductionmentioning

confidence: 99%

cBN particle filled SiCN precursor coatings

Kraus¹,

Günthner²,

Krenkel³

et al. 2009

Advances in Applied Ceramics

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“…12–14 GPa 25 . Amorphous SiCN‐based hard coatings, on the other hand, which are applied by PVD and CVD processes, have a hardness of 20 GPa 26 and 12–19 GPa, 27 respectively. Thus, the hardness of the laser pyrolyzed coatings is in the order of magnitude of the aforementioned hard coatings.…”

Section: Resultsmentioning

confidence: 99%

Laser pyrolyzed organosilazane‐based Al/ZrO₂ composite coating on stainless steel: Resulting microstructure and mechanical properties

Horcher

Tangermann-Gerk

Krenkel

et al. 2021

Int J Applied Ceramic Tech

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Protective ceramic‐based coatings are frequently the most suitable solutions for problems like corrosion and wear. It has been shown that the precursor technology is suitable for the preparation of ceramic coatings by pyrolysis in a furnace. However, the required high temperature for the preparation of the ceramic coatings limits this approach to high temperature‐resistant substrates. A very innovative approach to overcome this restriction is the use of laser radiation as a thermal source for the pyrolysis of the preceramic polymer. In this paper, we report on a coating system, for steel substrates, consisting of a polysilazane (Durazane 2250) bond coat and a hard and dense top‐coat composed of an organosilazane (Durazane 1800) with tetragonal ZrO2 particles and aluminum flakes as fillers pyrolyzed using Nd:YVO4 laser. The aluminum fillers led to a significant increase in absorption of the laser energy leading to the formation of a dense coating with a thickness up to 20 μm and a mainly cellular/columnar‐dendritic microstructure. The microstructure, mechanical, and tribological behaviors of these composite coatings are reported and compared to those of laser pyrolyzed glass/ZrO2‐filled polysilazane‐based coatings reported in the literature.

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“…In recent years, different types of coatings-polymers, composites, metals, and ceramics-have been widely used for corrosion protection. [8][9][10][11][12][13] Conventional ceramic coatings are prepared by deposition methods like chemical vapor deposition (CVD), physical vapor deposition (PVD), and thermal spraying techniques. 12,14 Drawbacks of these processes are consumption of high energy and high equipment cost.…”

Section: Introductionmentioning

confidence: 99%

Polymer‐derived SiOC ceramic coating for corrosion protection

Bura,

Kumar,

Prasad

2023

Int J Applied Ceramic Tech

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In the present study, a polymer‐derived silicon oxycarbide (SiOC) ceramic layer has been coated on stainless steel 304 (SS304) to improve corrosion resistance in a seawater environment. The surface of SS304 is dip‐coated with vinyl‐functionalized polysiloxane, followed by pyrolysis under argon at 800°C to obtain SiOC layer with a thickness of about 1 μm after two‐fold coating/pyrolysis steps. Structural characterization of the samples was performed by fourier transform infrared (FTIR), X‐ray diffraction, Raman spectroscopy, and scanning electron microscopy. Electrochemical characterization of SS304 and SiOC‐coated SS304 is performed in 0.6 M NaCl solution. Potentiodynamic polarization measurements showed improved corrosion resistance of SiOC‐coated SS304 with a very low corrosion current density of 4.14 × 10−9 A/cm2 whereas for uncoated SS304 corrosion current density of 4.56 × 10−7 A/cm2 was measured. Electrochemical impedance spectroscopic study confirmed superior corrosion resistance behavior of SiOC‐coated SS304 over uncoated SS304.

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Oxidation resistance of SiAlCN: H-coatings

Cited by 12 publications

References 13 publications

cBN particle filled SiCN precursor coatings

cBN particle filled SiCN precursor coatings

Laser pyrolyzed organosilazane‐based Al/ZrO₂ composite coating on stainless steel: Resulting microstructure and mechanical properties

Polymer‐derived SiOC ceramic coating for corrosion protection

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Oxidation resistance of SiAlCN: H-coatings

Cited by 12 publications

References 13 publications

cBN particle filled SiCN precursor coatings

cBN particle filled SiCN precursor coatings

Laser pyrolyzed organosilazane‐based Al/ZrO2 composite coating on stainless steel: Resulting microstructure and mechanical properties

Polymer‐derived SiOC ceramic coating for corrosion protection

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Product

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About

Laser pyrolyzed organosilazane‐based Al/ZrO₂ composite coating on stainless steel: Resulting microstructure and mechanical properties