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

Yu, Zhaoju and Lv, Xuan and Lai, Shuyi and Yang, Le and Lei, Wenjing and Luan, Xingang and Riedel, Ralf (2019):
ZrC-ZrB2-SiC ceramic nanocomposites derived from a novel single-source precursor with high ceramic yield.
In: Journal of Advanced Ceramics, SpringerOpen, pp. 112-120, 8, (1), ISSN 2226-4108,
DOI: 10.1007/s40145-018-0299-8,
[Online-Edition: https://link.springer.com/article/10.1007%2Fs40145-018-0299-...],
[Article]

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 degrees C. 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 degrees C. High temperature behavior with respect to decomposition as well as crystallization shows a promising high temperature stability of the formed ZrC-ZrB2-SiC nanocomposites.

Item Type: Article
Erschienen: 2019
Creators: Yu, Zhaoju and Lv, Xuan and Lai, Shuyi and Yang, Le and Lei, Wenjing and Luan, Xingang and Riedel, Ralf
Title: ZrC-ZrB2-SiC ceramic nanocomposites derived from a novel single-source precursor with high ceramic yield
Language: English
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 degrees C. 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 degrees C. High temperature behavior with respect to decomposition as well as crystallization shows a promising high temperature stability of the formed ZrC-ZrB2-SiC nanocomposites.

Journal or Publication Title: Journal of Advanced Ceramics
Volume: 8
Number: 1
Publisher: SpringerOpen
Uncontrolled Keywords: polymer derived ceramics; single-source precursor; ceramic nanocomposite C/C COMPOSITES; IN-SITU; ZRC; SILICON; ZIRCONIUM; POLYCARBOSILANE; INFILTRATION; FABRICATION; OXIDATION
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 23 Apr 2019 05:29
DOI: 10.1007/s40145-018-0299-8
Official URL: https://link.springer.com/article/10.1007%2Fs40145-018-0299-...
Funders: National Natural Science Foundation of China, 51872246, Alexander von Humboldt Foundation, National Key R&D Program of China, 2017YFB0703200, reative Research Foundation of Science and Technology on Thermo Structural Composite Materials Laboratory, 6142911040114
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