Microstructure and properties of in-situ composite coatings prepared by plasma spraying MoO3–Al composite powders

Wang, Yanwei; Wang, Xingyu; Wang, Xiaolong; Yang, Yong; Cui, Yu; Ma, Yanlin; Sun, Wenhui

doi:10.1016/j.ceramint.2020.08.227

Cited by 16 publications

(5 citation statements)

References 45 publications

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“…Some significant features of this fundamental powder microstructure have provided better corrosion resistance properties [49]. Some studies have represented the number of pores per unit of mass exercise for high importance denser kinetics, influencing microstructural evolution properties during the thermal oxidation test [89]. The Ni/YSZ's shows a greatenergy interference by Ni-base powder grains ceramic material over 20 vol.%, which did not exceed the percolation threshold.…”

Section: Composite Coating Hot Corrosion Behaviormentioning

confidence: 99%

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

et al. 2022

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Thermal barrier coating is critical for thermal insulation technology, making the underlying base metal capable of operating at a melting temperature of 1150 °C. By increasing the temperature of incoming gases, engineers can improve the thermal and mechanical performance of gas turbine blades and the piston cylinder arrangement. Recent developments in the field of thermal barrier coatings (TBCs) have made this material suitable for use in a variety of fields, including the aerospace and diesel engine industries. Changes in the turbine blade microstructure brought on by its operating environment determine how long and reliable it will be. In addition, the effectiveness of multi-layer, composite and functionally graded coatings depends heavily on the deposition procedures used to create them. This research aims to clarify the connection between workplace conditions, coating morphology and application methods. This article presents a high-level overview of the many coating processes and design procedures employed for TBCs to enhance the coating’s surface quality. To that end, this review is primarily concerned with the cultivation, processing and characteristics of engineered TBCs that have aided in the creation of specialized coatings for use in industrial settings.

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Section: Composite Coating Hot Corrosion Behaviormentioning

confidence: 99%

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

et al. 2022

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“…As a wear-resistant coating material, Mo is extensively used in engine piston rings, bearings, seals and shafts, as an overlay coating to prevent surface damage and degradation, in papermaking, aerospace, etc. [7,8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Lubricated Tribo-System of Modified Electrospark Coatings

et al. 2023

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This work presents the results of tribological tests of Mo and combined coatings TiAlC formed using electrospark alloying (ESA) technology and additionally processed using thermochemical electrolyte anodic heating (TEAH). ESA makes it possible to form 15–20 µm thick coatings on the friction surface, characterized by a high hardness and wear resistance. Tribological studies were performed by testing the block-on-roll friction pair under 300 N and 600 N loads. The duration of the tests was 180 km of friction path, and the constant rotation rate of the disk was 600 rpm. It was observed that the friction torque during the 300 N loading tests was stable for all samples and throughout the entire testing period, whereas at 600 N loading, the pair with the Mo coating had a decreasing trend, and the pair with the TiAlC coating, friction torque slightly increased. For a reference sample without the coating trend of friction torque became drastically unstable. At both loads (300 N and 600 N), the friction pair with the reference sample had the highest cumulative wear, and the pair with the Mo coating had the lowest. At both loads, the cumulative wear of the friction pair with Mo coating is about 2 times lower than the TiAlC, and ≥1.8 times lower than the control (not coated) version. This study shows that at lower loads, the friction pair formed by the TiAlC coating and steel C45 is more matched than the friction pair with Mo coating.

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“…Due to fast reaction rates, high energy release efficiencies, and excellent combustion performances, nanothermites based on the advantages brought by the nanoscale have been widely applied in military and civilian communities . Nanothermites, represented by traditional metal oxides, such as Al/CuO, Al/Fe 2 O 3 , Al/Bi 2 O 3 , Al/NiO, and Al/MoO 3 , are widely used in welding, microignition, fast initiation, gas generators, and other fields. Some oxysalts such as Al/NaIO 4 and Al/Bi(IO 3 ) 3 are used for minimally invasive sterilization.…”

Section: Introductionmentioning

confidence: 99%

Al/CuF₂ Composite Materials with Ignition Characteristics and Pressure Output Ability for Nanothermites

Cui

et al. 2023

ACS Appl. Nano Mater.

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To improve the pressure output ability of nanothermites to meet the needs in many fields, with the more volatile advantage of metal fluoride products (AlF3), this paper proposes the scheme of nanothermites (Al/CuF2). The energy release process of Al/CuF2 with different equivalent ratios under slow and fast heating rates has been studied. Under the slow heating rates, it was found that the equivalent ratio (Φ) has a significant influence on the energy release process. When Φ ≤ 1, the product is dominated by Cu. With the increase of the equivalent ratio, Al2Cu gradually appeared in the product, indicating that the increase of Al powder contributed to the enhancement of the alloy reaction. On the other hand, to further investigate the actual application of the Al/CuF2 mixture, combustion experiments in a closed container and in open air were carried out and compared with those of Al/CuO. In accordance with our design concept, AlCuF2 shows more excellent gas release ability. Al/CuF2 (Φ = 3) has the most excellent pressure output capacity (2.67 MPa), which increases by 107% compared to 1.29 MPa (Al/CuO). In addition, Al/CuF2 displays more excellent ignition performances in terms of shorter delay time and less ignition energy. Therefore, Al/CuF2 composite particles, as a novel nanothermite design, are expected to be widely used in the gas generator, micropropulsion, and other military and civilian fields.

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Microstructure and properties of in-situ composite coatings prepared by plasma spraying MoO3–Al composite powders

Cited by 16 publications

References 45 publications

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

Investigation of the Lubricated Tribo-System of Modified Electrospark Coatings

Al/CuF₂ Composite Materials with Ignition Characteristics and Pressure Output Ability for Nanothermites

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Microstructure and properties of in-situ composite coatings prepared by plasma spraying MoO3–Al composite powders

Cited by 16 publications

References 45 publications

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

Processing and Advancements in the Development of Thermal Barrier Coatings: A Review

Investigation of the Lubricated Tribo-System of Modified Electrospark Coatings

Al/CuF2 Composite Materials with Ignition Characteristics and Pressure Output Ability for Nanothermites

Contact Info

Product

Resources

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Al/CuF₂ Composite Materials with Ignition Characteristics and Pressure Output Ability for Nanothermites