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Synthesis of nanosized zirconium carbide from preceramic polymers by the facile one‐pot reaction
Author(s) -
Tao Xueyu,
Qiu Wenfeng,
Li Hao,
Zhao Tong
Publication year - 2010
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1664
Subject(s) - materials science , polymer , zirconium carbide , thermogravimetric analysis , ceramic , fourier transform infrared spectroscopy , zirconium , scanning electron microscope , pyrolytic carbon , gel permeation chromatography , chemical engineering , polystyrene , pyrolysis , polymer chemistry , composite material , metallurgy , engineering
A novel preceramic polymer, polyzirconoxanesal (PZS), was synthesized efficiently by one‐pot protocol. The PZS polymer was characterized by the techniques of Fourier transform infrared spectra (FTIR), nuclear magnetic resonance ( 1 H‐NMR and 13 C‐NMR) and gel permeation chromatography (GPC). The precursor exhibited excellent solubility and rheology for the processing of ceramic matrix fiber composites. Pyrolytic conversion of the preceramic polymer was studied by means of thermogravimetric analysis (TGA), X‐ray diffraction (XRD), scanning electron microscope (SEM) and element analysis. It is suggested that the polymer decomposed completely at 600°C and nanosized ZrC is formed at 1300°C for 2 hr in argon atmosphere with a yield of 68.5%. To the best of our knowledge, this is the lowest temperature reported in the literatures for preparing ZrC ceramics from preceramic polymers. The obtained ZrC particles exhibit spherical morphology with size ranged in 20–100 nm. Copyright © 2010 John Wiley & Sons, Ltd.