| cBN晶体的Raman光谱测量 |
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| 引用本文： | 陈立学,朱品文,马红安,郭伟力,陈洪亮,宋艳丽,贾晓鹏,邹广田.cBN晶体的Raman光谱测量[J].高压物理学报,2008,22(1):67-71. |
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| 作者姓名： | 陈立学 朱品文 马红安 郭伟力 陈洪亮 宋艳丽 贾晓鹏 邹广田 |
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| 作者单位： | 吉林大学超硬材料国家重点实验室,吉林长春,130012 |
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| 基金项目： | 吉林省科技厅基础研究项目 |
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| 摘 要： | 用R1000激光共聚焦Raman光谱仪研究了高温高压合成棒中的立方氮化硼（cBN）晶体、原材料六方氮化硼（hBN）和催化剂。Raman光谱测量结果表明：伴随cBN晶体生长的散射峰，出现了两条全新的Raman散射峰（约1.088 cm-1和约1.368 cm-1）。该散射峰所对应的物质可能是在高温高压条件下hBN向cBN转变时生成的不完全产物——BN的一种新相。这一结果将有助于进一步讨论cBN的生长机理。
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| 关 键 词： | 立方氮化硼（cBN） 六方氮化硼（hBN） Raman光谱 |
| 文章编号： | 1000-5773(2008)01-0067-05 |
| 收稿时间： | 2007-03-09; |
| 修稿时间： | 2007年3月9日 |
Study on Raman Spectrum of Synthesized cBN Crystal Block |
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| CHEN Li-Xue,ZHU Pin-Wen,MA Hong-An,GUO Wei-Li,CHEN Hong-Liang,SONG Yan-Li,JIA Xiao-Peng,ZOU Guang-Tian.Study on Raman Spectrum of Synthesized cBN Crystal Block[J].Chinese Journal of High Pressure Physics,2008,22(1):67-71. |
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| Authors: | CHEN Li-Xue ZHU Pin-Wen MA Hong-An GUO Wei-Li CHEN Hong-Liang SONG Yan-Li JIA Xiao-Peng ZOU Guang-Tian |
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| Institution: | National Key Laboratory for Superhard Materials, Jilin Univerisity, Changchun 130012, China |
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| Abstract: | cBN crystals, hBN and catalyst were used as raw material, to synthesize cBN crystal block, and the synthesized cBN crystal block was characterized using confocal Raman spectroscopy. Raman spectra show that Raman peak positions, ≈1.088 cm-1 and ≈1.368 cm-1, might be induced by a new phase of BN which is an intermediate phase between hBN and cBN. This phase may be an incomplete production of the phase transition from hBN to cBN under high pressure and high temperature (HPHT). These results may be helpful to understand the mechanism of cBN formation under HPHT. |
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| Keywords: | cBN hBN Raman spectrum |
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