ZrC–ZrB2–SiC ceramic nanocomposites derived from a novel single-source precursor with high ceramic yield
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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 °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 °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.
Keywordspolymer derived ceramics single-source precursor ceramic nanocomposite
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.
- Jiang DL. Fine Ceramics Materials. Beijing: Substance Press, 2000. (in Chinese)Google Scholar
- Wu W-W, Zhang G-J, Kan Y-M, et al. Reactive hot pressing of ZrB2–SiC–ZrC ultra high-temperature ceramics at 1800. J Am Ceram Soc 2006, 89: 2967–2969.Google Scholar
- Colombo P, Mera G, Riedel R, et al. Polymer-derived ceramics: 40 years of research and innovation in advanced ceramics. J Am Ceram Soc 2010, 93: 1805–1837.Google Scholar
- Drezdzon MA. The Manipulation of Air Sensitive Compounds. Chichester: John Wiley & Sons, 1986.Google Scholar
- Mocaer D, Pailler R, Naslain R, et al. Si–C–N ceramics with a high microstructural stability elaborated from the pyrolysis of new polycarbosilazane precursors. Part I: The organic/inorganic transition. J Mater Sci 1993, 28: 2615–2631.Google Scholar
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