Alumina growth behaviour on the surface-modified NiCoCrAl alloy by Pt and Hf at high temperature

Li, Chao; Song, Peng; Feng, Jing; Huang, Taihong; Lü, Kaiyue; Li, Qiaolei; Duan, Wenhao; Khan, Asghar; Zhai, Ruixiong; Lu, Jiansheng

doi:10.1016/j.apsusc.2019.02.179

Cited by 41 publications

(2 citation statements)

References 42 publications

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“…Therefore, to solve this series of defects, modified aluminide coatings have begun to be developed. Many experiments have shown that the addition of some active elements can improve the thermal corrosion resistance of the coating [62,63].…”

Section: Mechanism Of Thermal Corrosion Under the Action Of Molten Saltmentioning

confidence: 99%

Research Status of Aluminum Base Coating on Titanium Alloy

Zeng,

2023

Coatings

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At present, in the aviation industry, titanium alloy is mainly used to manufacture parts such as compressor discs, blades, and the casings of aircraft engines. When titanium alloys are in service, high temperature is generated due to high-speed running friction, which requires them to have high-temperature oxidation resistance and friction resistance. If they are used in an environment with salt corrosion, titanium alloys will face thermal corrosion, which limits their wider practical applications. At present, there are many methods to protect titanium alloys. This paper mainly includes alumina-based coatings and some preparation methods. The characteristics and functional mechanisms of three functional coatings for the service environment, namely highly temperature-resistant alumina-based coating, thermal corrosion-resistant alumina-based coating, and wear-resistant alumina-based coating, are summarized. Finally, the development direction of composite coatings of titanium and titanium alloys for a complex service environment is suggested.

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Section: Mechanism Of Thermal Corrosion Under the Action Of Molten Saltmentioning

confidence: 99%

Research Status of Aluminum Base Coating on Titanium Alloy

Zeng,

2023

Coatings

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“…Except for their important roles in nanocatalyst, [18,19] the multilayer metal films and alloys present their effect on high-temperature film electrodes. For example, alloys of different compositions have been found to have more stable conductivity at high temperatures [20][21][22][23][24]. In addition, Ti or Ta adhesion layers, [25][26][27][28][29][30] capping layers, [31] buffer layers, [15] and diffusion barriers [32][33][34] have also been applied to promote the hightemperature stability of electrode resistivity.…”

Section: Introductionmentioning

confidence: 99%

High‐Temperature Conductive Stability of ITO/Pt Bilayer‐Film Electrode for Applications in High‐Temperature SAW Devices

Mou

Peng

et al. 2022

Journal of Nanomaterials

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Surface-acoustic-wave (SAW) devices have been widely investigated over many years as demand has grown for information sensing above 1000°C. At such high temperatures, metal electrode creep occurs, thereby causing the transformation of an electrode from a continuous uniform film to a discontinuous film with hollows or isolated grains. In this study, 100 nm thick ITO conductive oxide film is deposited on 100 nm thick Pt film to form an ITO/Pt bilayer-film composite electrode for high-temperature SAW devices. According to this way, the conductive stability of the Pt film electrode at high temperature can be greatly improved. Compared with the initial value, the electrical conductivity of single-layer 100 nm thick Pt film decreases to 65.4% with the area fraction of Pt at 64.1%. Meanwhile, the electrical conductivity of ITO/Pt bilayer-film decreases to only 95% with the area fraction of Pt at 63.1%. Then, the enhancement of high-temperature conductive stability can be attributed to the added ITO conduction channels. These findings demonstrate a potential route to design multilayer electrodes that can operate above 1000°C with promising applications in SAW devices needing to operate at high temperatures.

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Effect of surface roughness at elevated temperature and pressure on the oxidation behaviour of co-based alloy

Ali,

Khan

et al. 2024

Bull Mater Sci

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Alumina growth behaviour on the surface-modified NiCoCrAl alloy by Pt and Hf at high temperature

Cited by 41 publications

References 42 publications

Research Status of Aluminum Base Coating on Titanium Alloy

Research Status of Aluminum Base Coating on Titanium Alloy

High‐Temperature Conductive Stability of ITO/Pt Bilayer‐Film Electrode for Applications in High‐Temperature SAW Devices

Effect of surface roughness at elevated temperature and pressure on the oxidation behaviour of co-based alloy

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