High temperature oxidation resistance of Y2O3 modified ZrB2-SiC coating for carbon/carbon composites

Ma, Hongan; Miao, Qiang; Liang, Wenping; Liu, Yangyang; Hua, Lin; Ma, Huijun; Zuo, Shiwei; Xue, Lin

doi:10.1016/j.ceramint.2020.11.015

Cited by 29 publications

(5 citation statements)

References 30 publications

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“…The surface layer is oxidized to SiO 2 , B 2 O 3 , TiO 2 , Y 2 O 3 , and ZrO 2 . Glassy B 2 O 3 /SiO 2 has good oxidation resistance below 1100 °C and can effectively fill microcracks at high temperatures. , TiO 2 , ZrO 2 , and Y 2 O 3 are all stable phases below 1200 °C, and the existence of Y 2 O 3 played an important role in inhibiting the phase transition of ZrO 2 , thus improving the anti-sintering ability of the protective layer . The SiCN/YSZ protective layer limits the agglomeration of Pt particles and delays the thermal volatilization and oxidation of the Pt-sensitive layer to ensure that the thin-film Pt RTD has good stability at high temperature.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the microstructure analysis mentioned earlier and the composition analysis of the SiCN/YSZ protective layer reported previously by the author's team, 42 a schematic illustration of the cross-sectional structure of the Pt RTD is established (Figure 3c). 45 The SiCN/ YSZ protective layer limits the agglomeration of Pt particles and delays the thermal volatilization and oxidation of the Ptsensitive layer to ensure that the thin-film Pt RTD has good stability at high temperature.…”

Section: Sensing Structure and Fabricationmentioning

confidence: 99%

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Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Zeng

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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In situ temperature monitoring of curved high-temperature components in extreme environments is challenging for a variety of applications in fields such as aero engines and gas turbines. Recently, extrusion-based direct ink writing (DIW) has been utilized to fabricate platinum (Pt) resistance temperature detectors (RTDs). However, the current Pt RTD prepared by DIW technology suffers from a limited temperature range and poor high-temperature stability. Here, DIW technology and yttria-stabilized zirconia (YSZ)-modified precursor ceramic film packaging have been used to build a Pt RTD with high-temperature resistance, small disturbance, and high stability. The results indicate that the protective layer formed by the liquid phase anchors the Pt particles and reduces the agglomeration and volatilization of the Pt sensitive layer at high temperature. Attributed to the SiCN/YSZ protective layer, the temperature resistance curve of the Pt RTD in the range of 50–800 °C has little deviation from the fitting curve, and the fitting correlation coefficient is above 0.9999. Interestingly, the Pt RTD also has high repeatability and stability. The high temperature resistance drift rate is only 0.05%/h after 100 h of long-term testing at 800 °C and can withstand butane flame up to ∼1300 °C without damage. Moreover, the Pt RTD can be conformally deposited on the outer ring of aerospace bearings by DIW technology and then realize on-site, nondestructive, and real-time monitoring of bearing temperature. The fabricated Pt RTD shows great potential for high-temperature applications, and the novel technology proposed provides a feasible pathway for temperature monitoring of aeroengine internal curved hot-end components.

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Section: Resultsmentioning

confidence: 99%

Section: Sensing Structure and Fabricationmentioning

confidence: 99%

Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Zeng

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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“…For example, HfC, 41 ZrC, 42 ZrB 2 , 43 and TiB 2 44 coatings with their insulating properties are established on the surface of SiC fibers. At present, these types of anti‐oxidation coatings have been widely used in carbon and silicon carbide matrix composites due to their excellent thermal matching performance with the matrix; In addition, Yb 2 O 3 , 45 Y 2 O 3 , 46 B 4 C, 47 Al 2 O 3 , 48 and Si 3 N 4 49 and other materials have a significant inhibitory effect on cristobalite. If appropriate processes can be taken to prepare them as coatings for SiC fibers or make their fibers surface modified and doped, it is believed that they can also inhibit the crystallization of the fiber oxide layer and improve the crystallization temperature and oxidation performance.…”

Section: Discussionmentioning

confidence: 99%

Degradation mechanism of near stoichiometric SiC fibers after air and Ar–H₂O–O₂corrosion at 1000–1500°C

Wang

et al. 2023

J Am Ceram Soc.

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The near stoichiometric SiC fiber has been reported to play significant roles in the application of aeroengine field. An in‐depth understanding on the degradation mechanism of the fiber during its corrosion in air and under a simulated aeroengine environment (PH2O:PO2:PAr = 14:8:78 kPa) will shine a light on the performance evaluations of the near stoichiometric SiC fiber‐based materials as well as the development of their potential applications. In this study, X‐ray diffraction, scanning electron microscope, and FIB‐TEM were utilized to analyze the mechanical properties and microstructure of the fiber. After oxidation in dry air and Ar–H2O–O2 for 1 h, respectively, the fiber strength retention rate has been found to decrease with the increased oxidation temperature. The raise in oxidation temperature also led to the increase of the thickness and the crystallization rate of the oxide scale. The most different oxidation behaviors of SiC being treated under the simulated environment than in air are the lower oxidation activation energy and the higher crystallization activation energy for cristobalite. Water vapor can promote the oxidation reaction and inhibit the crystallization of cristobalite in the oxide scale. Few significant differences have been observed otherwise in the oxidation process and oxidation chromatography crystallization mechanism of fibers being treated under different conditions. The increase of oxide layer thickness and the formation of cristobalite impair the structural integrity and compactness of the oxide scale and thus lead to the deterioration of the mechanical properties of SiC fibers. Therefore, it is proposed that oxidation resistance of SiC fiber can be improved by insulating the reaction between the oxidizing agents and the SiC fiber or by increasing the crystallization temperature of cristobalite in the oxidation process and reducing the crystallization rate.

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“…ZrB2 has low theoretical density (6.09 g/cm 3 ), high melting temperature, high hardness, high thermal conductivity, chemical inertness against molten metals, and good thermal shock resistance [1], which attracts more attention in corrosion, wear, and oxidation of ultrahigh temperature applications [2][3][4]. ZrB2 coating can be fabricated by methods including magnetron sputtering [5], plasma spray [6,7], and chemical vapor deposition (CVD) [8,9]. Among these methods, CVD is one of the most effective methods for preparation of thin films and protective coatings [10,11].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Formation Mechanisms of Nanowires and Nanoplates ZrO<sub>2</sub> during the ZrB<sub>2</sub> Deposition Process

Zhu

Cheng

et al. 2022

KEM

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Preparation of boride by chemical vapor deposition (CVD) is sensitive to oxygen, subtle changes in oxygen concentration during the deposition of ZrB2 can induce the formation of Zirconium dioxide (ZrO2) with a novel nanoplate-stacked structure and nanowire structure. The ZrO2 nanostructure changed with - oxygen concentration. Nanowires with uniform size of 50-100 nm in diameter and over 100 μm in length were obtained at high oxygen concentration, while highly-ordered nanoplate arrays were obtained at low oxygen concentration. Both of these nanostructures were grown in situ on the surface of ZrB2-coating. In this paper, the preparation method of novelty ZrO2 nano-structures grown in situ was provided, the morphologies and compositions of the nano-structural ZrO2 were characterized and the formation mechanism was proposed, which also provides experimental basis for the industrial morphology control of ZrB2 deposited by CVD method.

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High temperature oxidation resistance of Y2O3 modified ZrB2-SiC coating for carbon/carbon composites

Cited by 29 publications

References 30 publications

Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Degradation mechanism of near stoichiometric SiC fibers after air and Ar–H₂O–O₂corrosion at 1000–1500°C

Microstructure and Formation Mechanisms of Nanowires and Nanoplates ZrO<sub>2</sub> during the ZrB<sub>2</sub> Deposition Process

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High temperature oxidation resistance of Y2O3 modified ZrB2-SiC coating for carbon/carbon composites

Cited by 29 publications

References 30 publications

Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Thin-Film Platinum Resistance Temperature Detector with a SiCN/Yttria-Stabilized Zirconia Protective Layer by Direct Ink Writing for High-Temperature Applications

Degradation mechanism of near stoichiometric SiC fibers after air and Ar–H2O–O2corrosion at 1000–1500°C

Microstructure and Formation Mechanisms of Nanowires and Nanoplates ZrO<sub>2</sub> during the ZrB<sub>2</sub> Deposition Process

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Degradation mechanism of near stoichiometric SiC fibers after air and Ar–H₂O–O₂corrosion at 1000–1500°C