High-Temperature High-Pressure Synchrotron X-Ray Diffraction Study of C<SUB>3</SUB>N<SUB>4</SUB>

ZHOU Qiang; HE Zhi; LI Fang-Fei; ZHANG Jian; LI Xue-Fei; MA Yan-Mei; PENG Gang; CUI Qi-Liang; LIU Jing; ZOU Guang-Tian

Chinese Physics C> 2005, Vol. 29> Issue(S1) : 126-129

High-Temperature High-Pressure Synchrotron X-Ray Diffraction Study of C₃N₄

National Laboratory of Superhard Materials,Jilin University,Changchun 130012,China2 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

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Abstract：
Pure beta-C₃N₄ with symmetry group P63/M (176) and cubic C₃N₄ were synthesized in laser heated diamond anvil cell under high pressure and high temperature conditions. The precise XRD analysis (R_wp=2.8) was successfully performed to refine the structures of graphite C₃N₄ and beta-C₃N₄. Moreover, the structural transition from beta-C₃N₄ to cubic C₃N₄ was monitored by In-situ high pressure synchrotron X-ray diffraction analysis.

References

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ZHOU Qiang, HE Zhi, LI Fang-Fei, ZHANG Jian, LI Xue-Fei, MA Yan-Mei, PENG Gang, CUI Qi-Liang, LIU Jing and ZOU Guang-Tian. High-Temperature High-Pressure Synchrotron X-Ray Diffraction Study of C₃N₄[J]. Chinese Physics C, 2005, 29(S1): 126-129.

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Received: 2005-10-31
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

High-Temperature High-Pressure Synchrotron X-Ray Diffraction Study of C₃N₄

Corresponding author: CUI Qi-Liang,

National Laboratory of Superhard Materials,Jilin University,Changchun 130012,China2 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2005-10-31
Accepted Date: 1900-01-01
Available Online: 2005-01-02

Abstract: Pure beta-C₃N₄ with symmetry group P63/M (176) and cubic C₃N₄ were synthesized in laser heated diamond anvil cell under high pressure and high temperature conditions. The precise XRD analysis (R_wp=2.8) was successfully performed to refine the structures of graphite C₃N₄ and beta-C₃N₄. Moreover, the structural transition from beta-C₃N₄ to cubic C₃N₄ was monitored by In-situ high pressure synchrotron X-ray diffraction analysis.