Study on Vibration Spectra of cBN Synthesized under High Pressure and High Temperature
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摘要: 本文利用FT-IR和Raman光谱对用不同触媒高压合成的不同颜色立方氮化硼晶格振动的声子吸收和散射进行了研究。获得了较完整的晶格振动信息，并在1 000~1 300 cm-1范围内，观测到了3个新的振动谱带，其中一个位于1 089 cm-1， 归属为体TO声子和表面TO声子组合带，另两条513、801 cm-1推测为杂质诱发吸收带。Abstract: Phonon absorption and reflection of the lattice vibration of different color cBN synthesized by static high-pressure high-temperature method were investigated, much information about its lattice vibrations being obtained. Three new spectrum lines of lattice vibration in the range from 1 000 cm-1 to 1 300 cm-1 were observed, one of which is ascribed to the TO mode couple of body-surface phonons, the other two lines may probably be caused by the absorption of impurities.
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Key words:
- cBN /
- vibration spectrum /
- synthesis
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