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用(C2H5)2OBF3和Li3N苯热合成cBN机理探讨

王少波,  徐晓伟,  范慧俐,  郑延军,  李玉萍

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文章导航 > 高压物理学报  > 2006 >  20(1): 29-33 .
王少波, 徐晓伟, 范慧俐, 郑延军, 李玉萍. 用(C2H5)2OBF3和Li3N苯热合成cBN机理探讨[J]. 高压物理学报, 2006, 20(1): 29-33 . doi: 10.11858/gywlxb.2006.01.007
引用本文: 王少波, 徐晓伟, 范慧俐, 郑延军, 李玉萍. 用(C2H5)2OBF3和Li3N苯热合成cBN机理探讨[J]. 高压物理学报, 2006, 20(1): 29-33 . doi: 10.11858/gywlxb.2006.01.007
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WANG Shao-Bo, XU Xiao-Wei, FAN Hui-Li, ZHENG Yan-Jun, LI Yu-Ping. Discussion on the Mechanism of cBN Synthesized by Benzene Thermal Method Using (C2H5)2OBF3 and Li3N as Reactants[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 29-33 . doi: 10.11858/gywlxb.2006.01.007
Citation: WANG Shao-Bo, XU Xiao-Wei, FAN Hui-Li, ZHENG Yan-Jun, LI Yu-Ping. Discussion on the Mechanism of cBN Synthesized by Benzene Thermal Method Using (C2H5)2OBF3 and Li3N as Reactants[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 29-33 . doi: 10.11858/gywlxb.2006.01.007
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用(C2H5)2OBF3和Li3N苯热合成cBN机理探讨

doi: 10.11858/gywlxb.2006.01.007
  • 1.

    北京科技大学材料科学与工程学院，北京 100083；

  • 2.

    北京科技大学应用科学学院，北京 100083

详细信息
    通讯作者:

    徐晓伟

Discussion on the Mechanism of cBN Synthesized by Benzene Thermal Method Using (C2H5)2OBF3 and Li3N as Reactants

  • 1.

    Material Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;

  • 2.

    Applied Science School, University of Science and Technology Beijing, Beijing 100083, China

More Information
    Corresponding author: XU Xiao-Wei

    摘要
  • 摘要: 以(C2H5)2OBF3和Li3N为原料，于苯热条件下合成氮化硼并研究其相变机理。X射线粉末衍射和傅立叶变换红外吸收光谱分析证明，产物中不仅有hBN和cBN物相存在，而且还发现了正交氮化硼（oBN）和锂硼氮的常压相Li3BN2(O)及高压相Li3BN2(T)存在。分析了Li3BN2在高温高压条件下和在苯热条件下对合成cBN催化机制的差异，探讨了Li3BN2在以Li3N和(C2H5)2OBF3为原料合成BN的催化机制，提出常压相Li3BN2(O)和高压相Li3BN2(T)分别对生成cBN和oBN起催化作用的观点。

     

    Abstract: BN is synthesized by benzene thermal method using (C2H5)2OBF3 and Li3N as reactants and its phase transition mechanism is studied. Not only hBN and cBN are found in the products testified by XRD and FTIR, but also oBN, atmosphere form Li3BN2(O) and high pressure form Li3BN2(T) are discovered. The differences of cBN catalytic mechanism between high pressure and high temperature method and benzene thermal synthesis method are analyzed. Furthermore, the catalytic mechanism of Li3BN2 to synthesize BN using Li3N and (C2H5)2OBF3 as reactants is discussed. At the same time, it stands out the atmosphere form Li3BN2(O) and the high pressure form Li3BN2(T) can catalyze the synthesis of cBN and oBN, respectively.

     

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出版历程
  • 收稿日期:  2005-01-04
  • 修回日期:  2005-03-29
  • 发布日期:  2006-03-05

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