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For the first time, ZrC-ZrB2-SiC ceramic nanocomposites were successfully prepared by a single-source-precursor route, with allylhydridopolycarbosilane (AHPCS), triethylamine borane (TEAB), and bis(cyclopentadienyl) zirconium dichloride (Cp2ZrCl2) as starting materials. The polymer-to-ceramic transformation and thermal behavior of obtained single-source precursor were characterized by means of Fourier transform infrared spectroscopy (FT-IR) and thermal gravimetric analysis (TGA). The results show that the precursor possesses a high ceramic yield about 85% at 1000 ℃. The phase composition and microstructure of formed ZrC-ZrB2-SiC ceramics were investigated by means of X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). Meanwhile, the weight loss and chemical composition of the resultant ZrC-ZrB2-SiC nanocomposites were investigated after annealing at high temperature up to 1800 ℃. High temperature behavior with respect to decomposition as well as crystallization shows a promising high temperature stability of the formed ZrC-ZrB2-SiC nanocomposites.


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ZrC-ZrB2-SiC ceramic nanocomposites derived from a novel single-source precursor with high ceramic yield

Show Author's information Zhaoju YUa,b( )Xuan LVaShuyi LAIaLe YANGcWenjing LEIaXingang LUANd( )Ralf RIEDELd,e
College of Materials, Key Laboratory of High Performance Ceramic Fibers (Xiamen University), Ministry of Education, Xiamen 361005, China
College of Materials, Fujian Key Laboratory of Advanced Materials (Xiamen University), Xiamen 361005, China
College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an 710072, China
Technische Universität Darmstadt, Institut für Materialwissenschaft, Otto-Berndt-Straße 3, D-64287, Darmstadt, Germany

Abstract

For the first time, ZrC-ZrB2-SiC ceramic nanocomposites were successfully prepared by a single-source-precursor route, with allylhydridopolycarbosilane (AHPCS), triethylamine borane (TEAB), and bis(cyclopentadienyl) zirconium dichloride (Cp2ZrCl2) as starting materials. The polymer-to-ceramic transformation and thermal behavior of obtained single-source precursor were characterized by means of Fourier transform infrared spectroscopy (FT-IR) and thermal gravimetric analysis (TGA). The results show that the precursor possesses a high ceramic yield about 85% at 1000 ℃. The phase composition and microstructure of formed ZrC-ZrB2-SiC ceramics were investigated by means of X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). Meanwhile, the weight loss and chemical composition of the resultant ZrC-ZrB2-SiC nanocomposites were investigated after annealing at high temperature up to 1800 ℃. High temperature behavior with respect to decomposition as well as crystallization shows a promising high temperature stability of the formed ZrC-ZrB2-SiC nanocomposites.

Keywords:

polymer derived ceramics, single-source precursor, ceramic nanocomposite
Received: 21 June 2018 Revised: 08 October 2018 Accepted: 09 October 2018 Published: 13 March 2019 Issue date: March 2019
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Publication history
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Publication history

Received: 21 June 2018
Revised: 08 October 2018
Accepted: 09 October 2018
Published: 13 March 2019
Issue date: March 2019

Copyright

© The author(s) 2019

Acknowledgements

Zhaoju Yu thanks National Natural Science Foundation of China (No. 51872246), Alexander von Humboldt Foundation, and Creative Research Foundation of Science and Technology on Thermo Structural Composite Materials Laboratory (No. 6142911040114) for financial support. Xingang Luan thanks the National Key R&D Program of China (No. 2017YFB0703200) for financial support.

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