Investigations on the Influence of Annealing on Microstructure and Mechanical Properties of Electrodeposited Ni-Mo and Ni-Mo-W Alloy Coatings

Zhang, Chao; Si, Wudong; Wang, Yin; Dai, Sichao; Shu, Da

doi:10.3390/coatings11111428

Cited by 13 publications

(2 citation statements)

References 46 publications

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“…This also affects the kinetics of the reaction between the carbon precursor (CH4) and the Ni catalyst layer, thereby influencing the efficient amount of carbon atoms absorbed and incorporated into the catalyst layer. In addition, a longer time and higher temperature during the annealing process can result in the rate of atomic diffusion in the material layer being slower, resulting in a more significant reduction in the atomic element content of a material [33,34], which also affects precursor atomic interactions. CH4 with Ni as the catalyst layer [23].…”

Section: Energy Dispersive X-ray Spectroscopy (Eds) Analysismentioning

confidence: 99%

Enhancing Growth of Multi-Layer Graphene Synthesis on Glass Substrate Though Ni Catalyst Annealing Using Hot Wire in Plasma Very High-Frequency PECVD Method

Nuayi,

Noor,

Sustini

et al. 2024

J. Phys.: Conf. Ser.

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This study synthesized multi-layer graphene on a glass substrate using the high-frequency plasma-enhanced vapor deposition method with a hot wire in plasma. In the growth process, plasma was generated from methane gas (CH4) using an RF power generator at 70 MHz frequency and nickel (Ni) as the catalyst, which is deposited and annealed beforehand. This study aims as a preliminary to obtain optimum parameters for MLG growth using the HW IP-VHF-PECVD method. Raman spectroscopy, utilizing a 532 nm laser and an 1800 g/mm grating, detected distinctive D-band, G-band, and 2D-band peaks at wave numbers of 1335.31, 1607.74, and 2660.99 cm−1, respectively, in unannealed catalyst samples. Raman analysis, incorporating the I2D/IG ratio, revealed the presence of multi-layer graphene exhibiting diverse ratios (0.07 – 0.22) and crystal sizes (15.62 – 20.70 nm). SEM analysis demonstrated enhanced homogeneity in grain size and uniformity in thickness following Ni catalyst annealing. EDS confirmed the successful growth of graphene with carbon identified as the primary element. The annealing process at 400 °C for two hours resulted in graphene with a higher mass percentage and a more significant percentage of carbon atoms. These findings underscore the potential of the HW IP-VHF-PECVD method for producing multi-layer graphene, particularly in the context of solar cell applications, with further optimization of parameters.

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Section: Energy Dispersive X-ray Spectroscopy (Eds) Analysismentioning

confidence: 99%

Enhancing Growth of Multi-Layer Graphene Synthesis on Glass Substrate Though Ni Catalyst Annealing Using Hot Wire in Plasma Very High-Frequency PECVD Method

Nuayi,

Noor,

Sustini

et al. 2024

J. Phys.: Conf. Ser.

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show abstract

“…In addition, heat treatment can be applied to further improve the hardness and wear resistance of the obtained coatings [3,[16][17][18]. Wang et al reported that the suitable annealing can significantly enhance the properties and microstructure of Ni-W/diamond composite coatings [16].…”

Section: Introductionmentioning

confidence: 99%

Influence of Annealing on the Microstructure and Mechanical Properties of Ni-W/Boron Composite Coatings

et al. 2022

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Ni-W/boron composite coatings are deposited from an ammonia citrate bath with a boron particle suspension. The effect of the boron incorporation into the Ni-W alloy coating and subsequent heat treatment of the deposits on the microstructure and properties of the Ni-W/boron coatings have been investigated. The boron particles can be uniformly dispersed in the Ni-W alloy, which can lead to an enhancement in the wear performance and hardness of the coatings. The XRD results show that a new Ni4W phase can be formed, especially at heat treatment temperatures beyond 400 °C. The grain size of the deposits is smaller than 10 nm with heat treatment temperatures lower than 600 °C and increases with the heat treatment temperature increasing. The higher temperature will significantly cause the grain coarsening (25.8 nm at 700 °C). Furthermore, the hardness and wear resistance increase with the formation of the Ni4W phase and the inverse Hall–Petch relationship at the lower heat treatment temperatures (<600 °C). While the grain coarsening causes the hardness of the deposits to decrease at the temperature of 700 °C.

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Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

Wicaksono,

Ardeshiri Lordejani,

Bagherifard

2024

Adv Eng Mater

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Cermet materials comprising ceramic and metallic constituents demonstrate superior mechanical properties, rendering them highly appropriate for demanding applications. Studies have shown that cold spray (CS) technology is a viable method for producing cermet coatings and components. CS effectively embeds the ceramic phase, which acts as reinforcement, within the metallic matrix. Herein, a comprehensive review of diverse aspects of cermet deposits obtained using CS technology is provided, with particular emphasis on feedstock preparation methodologies and their subsequent impact on deposit characteristics. It examines the effects of several spray process parameters, feeding modes, and postprocessing techniques on the compositional and structural characteristics of the cermet deposits. The challenges and potentials are critically discussed, and future trends in the growing applications are highlighted. Aim of this study is to provide a comprehensive view on the current state of the art to facilitate the modulation of cermet deposits' performance produced using CS technology.

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Investigations on the Influence of Annealing on Microstructure and Mechanical Properties of Electrodeposited Ni-Mo and Ni-Mo-W Alloy Coatings

Cited by 13 publications

References 46 publications

Enhancing Growth of Multi-Layer Graphene Synthesis on Glass Substrate Though Ni Catalyst Annealing Using Hot Wire in Plasma Very High-Frequency PECVD Method

Enhancing Growth of Multi-Layer Graphene Synthesis on Glass Substrate Though Ni Catalyst Annealing Using Hot Wire in Plasma Very High-Frequency PECVD Method

Influence of Annealing on the Microstructure and Mechanical Properties of Ni-W/Boron Composite Coatings

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

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