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Structural evolution and high-temperature sensing performance of polymer-derived SiAlBCN ceramics

May 15, 2024
in Technology and Engineering
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Structural evolution and high-temperature sensing performance of polymer-derived SiAlBCN ceramics
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The group of Gang Shao from Zhengzhou University, China recently investigated the structural evolution of pentagonal polymer-derived SiAlBCN ceramics (PDCs) and outlined PDC-based sensor technology for high-temperature extreme environments. The high-performance temperature sensing materials including high sensitivity, fast response, wide detection range are scarce and needful. This research developed a ceramic-based temperature with attractive performance that can be applied in high-temperature environments of 1100 °C. This sensor has great potential for in-situ monitoring of extreme environmental temperatures including high temperature, high pressure, strong oxidation/corrosion circumstance.

The group of Gang Shao from Zhengzhou University, China recently investigated the structural evolution of pentagonal polymer-derived SiAlBCN ceramics (PDCs) and outlined PDC-based sensor technology for high-temperature extreme environments. The high-performance temperature sensing materials including high sensitivity, fast response, wide detection range are scarce and needful. This research developed a ceramic-based temperature with attractive performance that can be applied in high-temperature environments of 1100 °C. This sensor has great potential for in-situ monitoring of extreme environmental temperatures including high temperature, high pressure, strong oxidation/corrosion circumstance.

 

The team published their paper in Journal of Advanced ceramics on April 30, 2024.

 

For the accurately monitor of information on the surface temperature of key hot end components of aircraft engines, it is crucial to evaluate the combustion efficiency of gas, monitoring engine operation status, and fault diagnosis, so that the thermal mechanical modeling and simulation, the cooling effect of gas film cooling technology and the performance of thermal barrier coatings can be verified. However, it is still very difficult to accurately obtain information such as temperature and pressure in the extremely harsh working environment, said Gang Shao. Polymer-derived ceramics (PDCs) as sensing materials have been considered promising candidates for monitoring temperature signals due to their excellent thermal stability, good corrosion/oxidation resistance, creep resistance, and high temperature semiconductor characteristics, continued said Gang Shao.

 

This work presents the preparation of the polymer-derived SiAlBCN ceramics at different pyrolysis temperatures. Their structural evolution is analyzed systematically and the results show that the size of the free carbon phase enlarges with the increasing temperature and the amorphous SiAlBCN phase became more ordered with the structural reassembly. Compared to SiCN and SiBCN ceramics, SiAlBCN PDCs exhibits excellent oxidation/corrosion resistance, which was related to their low oxidative rate constant (3.43 mg2/(cm4·h)) and volatilized rate constant (0.57 mg/(cm2·h)), guaranteeing that they could survive well in extreme environments, said Gang Shao.

 

The fabricated SiAlBCN temperature sensor possesses excellent stability, repeatability, and accuracy and can work within the maximum temperature of 1100 °C, which can operate positively in extreme environments such as aeroengines, nuclear reactors, and hypersonic vehicles in the future, said Gang Shao.

 

In the future, our team will continue to focus on the development of temperature sensor that can be applied in higher temperature. To prevent from the trouble caused by wired sensor, the wireless and passive sensor will be researched to realize advanced signal detection.

 

Other contributors include Chao Ma, Kun Liu, Pengfei Shao, Daoyang Han, Kang Wang, Mengmeng Yang, Rui Zhao, Hailong Wang, Rui Zhang from School of Material Science and Engineering at Zhengzhou University, China.

 

This work was financially supported by the National Key R&D Program of China (No. 2021YFB3200500), the National Natural Science Foundation of China (Nos. 52072344 and U1904180), the Excellent Young Scientists Fund of Henan Province (No.202300410369), and the Henan Province University Innovation Talents Support Program (No. 21HASTIT001).

 


About Journal of Advanced Ceramics

Journal of Advanced Ceramics (JAC) is an international journal that presents the state-of-the-art results of theoretical and experimental studies on the processing, structure, and properties of advanced ceramics and ceramic-based composites. JAC is Fully Open Access, monthly published by Tsinghua University Press on behalf of the State Key Laboratory of New Ceramics and Fine Processing (Tsinghua University) and the Advanced Ceramics Division of the Chinese Ceramic Society, and exclusively available via SciOpen. JAC has been indexed in SCIE (IF = 16.9, top 1/28, Q1), Scopus, and Ei Compendex.

About SciOpen 

SciOpen is a professional open access resource for discovery of scientific and technical content published by the Tsinghua University Press and its publishing partners, providing the scholarly publishing community with innovative technology and market-leading capabilities. SciOpen provides end-to-end services across manuscript submission, peer review, content hosting, analytics, and identity management and expert advice to ensure each journal’s development by offering a range of options across all functions as Journal Layout, Production Services, Editorial Services, Marketing and Promotions, Online Functionality, etc. By digitalizing the publishing process, SciOpen widens the reach, deepens the impact, and accelerates the exchange of ideas.



Journal

Journal of Advanced Ceramics

DOI

10.26599/JAC.2024.9220870

Article Title

Structural evolution and high-temperature sensing performance of polymer-derived SiAlBCN ceramics

Article Publication Date

30-Apr-2024

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