The Bonding Formation during Thermal Spraying of Ceramic Coatings: A Review

Luo, Xiao-Tao; Yao, Shuwei; Li, Chang-Jiu; Yang, Guan-Jun

doi:10.1007/s11666-022-01379-z

Cited by 34 publications

(8 citation statements)

References 158 publications

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“…Therefore, taking ν s and µ into Eq. 2, σ = 86.6 ± 26.5 MPa can be calculated, which achieves the optimal level of interfacial bonding strength for the ceramic-based films fabricated on metal substrates (20 < σ < 100 MPa) [43,44].…”

Section: Properties and Performance Of Sioc-wox Gradient Nanocomposit...mentioning

confidence: 90%

SiOC matrix nanocomposite films with self-gradient properties fabricated by laser sintering of hybrid nanoparticles

Chen,

Qiu,

Zhang

et al. 2024

Preprint

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The reinforced ceramics, known as ceramic matrix composites (CMCs), is playing an important role in modern advanced industrial applications. However, the fabrication of CMCs with both high toughness and high stiffness, which are normally considered mutually exclusive, is still challenging. Here, we develop a gradient property SiOC composite film reinforced with nanoscale tungsten-based particles using a novel avenue of the integration of hybrid nanoparticles inkjet printing and selective laser sintering. Mechanical results of SiOC-WOx films exhibit the stiffness-toughness co-enhancement, including a twofold improvement in hardness and modulus, and an over 3.8-fold better fracture toughness performance than its matrix. Moreover, owing to the metal-to-ceramic gradient properties, the films exhibit interfacial bonding strengths up to 86.6 MPa and operate stably even at 1050 ℃. Characterization results show that the excellent mechanical and interfacial performance is attributed to the significant gradient composition and uniformly dispersed self-assembled nanoscale reinforcing particles. The success of SiOC-WOx CMC films demonstrates the potential to accelerate the discovery of revolutionary nanocomposites using hybrid nanoparticles and bottom-up additive manufacturing processes.

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Section: Properties and Performance Of Sioc-wox Gradient Nanocomposit...mentioning

confidence: 90%

SiOC matrix nanocomposite films with self-gradient properties fabricated by laser sintering of hybrid nanoparticles

Chen,

Qiu,

Zhang

et al. 2024

Preprint

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“…To achieve strong adhesion, the distance between interacting atoms must be maintained at less than 1 nm. Additionally, a clean surface, interaction between the atoms, and a metallic connection are necessary to establish physical interaction between particles and enhance adhesion [54].…”

Section: Thermal Conductivity Testmentioning

confidence: 99%

Production of a double cermet coating to treatment of the turbine blades

Antar,

Darweesh,

Ridha

2024

Eng. Res. Express

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Turbine blades often experience external failures, such as cracks and high pores, during operation. To address these issues, a method known as thermal spraying by flame is employed to apply cermet materials consisting of metal and ceramics onto the blades. The process involved incorporating manganese (Mn) into a chromium oxide (Cr2O3) base in varying proportions (3,6,9,12,15)%. Prior to this, the two mixtures underwent several preparatory steps, including being mixed with a micro-mill for two hours and then dried at 80°C for thirty minutes to remove any moisture present in the laboratory. The coating bases were prepared from an out-of-service turbine bit and shaped into squares with a side length of 1cm. The bases were then roughened and indented using a paint gun. The resulting models were sintered at a temperature of 1000°C for two hours. A number of structural and physical tests were carried out for the painted models before and after thermal sintering. Scanning electron microscope tests revealed crystalline regularity and lattice consistency of the outer surface especially at 15%Mn. Regarding the findings of the actual density, it was observed that the inclusion of manganese leads to a gradual enhancement in density with each subsequent addition. However, there was a consistent decrease in real porosity and water absorption, resulting in lower values at 15%. The hardness and adhesion strength exhibited significant improvements, increasing by approximately 15%. Conversely, the addition of the stiffener led to a continuous decrease in thermal conductivity. Thus, it was determined that the optimal coating parameters for achieving favorable outcomes were a coating distance of 16cm, a coating angle of 90°, and thermal sintering at 1000°C.

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“…During film adhesive joining process, one or more well-known bonding mechanisms could operate. 4 For instance, “mechanical bonding” might take place due to the certain degree of surface roughness leading to “interlocking” action at the interface. “Secondary bonding” might occur due to the “polar interactions” between the surfaces.…”

Section: Introductionmentioning

confidence: 99%

Improving film adhesive joining performance of poly(phenylene sulfide)/carbon fiber thermoplastic composite laminates by plasma surface treatment

Uşak,

Kaynak

2023

Journal of Thermoplastic Composite Materials

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The main purpose of this study was to observe the degree of the improvement on the film adhesive joining performance of Poly(phenylene sulfide)/Carbon Fiber (PPS/CF) thermoplastic composite laminates when their surfaces were treated by atmospheric plasma technique. For this purpose, plasma treated surfaces were compared with untreated and the traditional grit-blasted surfaces. Treated surfaces were characterized by various techniques including contact angle, surface energy, surface roughness, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses. Then, joining performance of the PPS/CF composite samples bonded by an epoxy-based film adhesive was determined by using three different mechanical tests; single-lap shear strength, mode-I interlaminar fracture toughness energy, and drop-weight impact toughness. Grit-blasting surface treatment increased surface roughness of the specimens enormously (7 times more), leading to mechanical interlocking as the dominant bonding mechanism. Contrarily, plasma surface treatment resulted in formation of chemically reactive sites, thus dominant bonding mechanisms in the film adhesive joining were certain polar interactions and chemical bonding. Mechanical tests pointed out that compared to grit-blasting, plasma surface treatment resulted in considerably higher joint performance regarding interlaminar shear strength (35% more), interlaminar fracture toughness (67% more) and impact toughness (28% more), with the cohesive failure mode. Accordingly, it could be stated that traditional grit-blasting could be replaced with plasma surface treatment applied before film adhesive joining of PPS/CF composite parts in aircraft industry.

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The Bonding Formation during Thermal Spraying of Ceramic Coatings: A Review

Cited by 34 publications

References 158 publications

SiOC matrix nanocomposite films with self-gradient properties fabricated by laser sintering of hybrid nanoparticles

SiOC matrix nanocomposite films with self-gradient properties fabricated by laser sintering of hybrid nanoparticles

Production of a double cermet coating to treatment of the turbine blades

Improving film adhesive joining performance of poly(phenylene sulfide)/carbon fiber thermoplastic composite laminates by plasma surface treatment

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