| Original Articles |
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Chemical Synthesis and Characterization of Flaky h-BCN at High Pressure and High Temperature |
| YANG Da-Peng;LI Ying-Ai;YANG Xu-Xin;DU Yong-Hui;JI Xiao-Rui;GONG Xi-Liang;SU Zuo-Peng;ZHANG Tie-Chen |
| National Laboratory of Superhard Materials, Jilin University, Changchun 130023 |
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| Cite this article: |
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YANG Da-Peng, LI Ying-Ai, YANG Xu-Xin et al 2007 Chin. Phys. Lett. 24 1088-1091 |
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Abstract Hexagonal boron carbonitrogen (h-BCN) compound is synthesized from a
mixture of boron powder and CNH compound prepared by pyrolysis of
melamine (C3H6N6) under high temperature (1400--1500°C) and high pressure (5.0--5.5GPa). X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and Raman spectroscopy are used to determine the chemical composition and bonds of the product. The results show that the product has composition of B0.18C0.64N0.16 (near BC4N) and atomic-level hybrid. X-ray diffraction analysis indicates that the powder has a hexagonal network structure. Scanning and transmission electron microscopy results suggest that h-BCN compound morphology is mainly flaky in width about 1μm and thickness 200nm.
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| Keywords:
81.05.Je
81.20.Ka
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Received: 18 September 2006
Published: 26 March 2007
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| PACS: |
81.05.Je
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(Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))
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81.20.Ka
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(Chemical synthesis; combustion synthesis)
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