常温和100~800 MPa压力下石膏的Raman光谱研究

杨玉萍; 郑海飞

doi:10.11858/gywlxb.2006.01.006

常温和100~800 MPa压力下石膏的Raman光谱研究

doi: 10.11858/gywlxb.2006.01.006

1.
北京大学造山带与地壳演化教育部重点实验室，北京 100871；
2.
北京大学地球与空间科学学院，北京 100871

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通讯作者:
郑海飞

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出版历程
- 收稿日期: 2004-09-21
- 修回日期: 2005-03-18
- 发布日期: 2006-03-05

Research on the Raman Spectra of Gypsum at Pressure of 100~800 MPa and Room Temperature

1.
Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Beijing 100871, China;
2.
School of Earth and Space Science, Peking University, Beijing 100871, China

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Corresponding author: ZHENG Hai-Fei

摘要

摘要: 利用金刚石压腔装置测量了高压下石膏中SO键的4种振动模式和结晶水中羟基伸缩振动Raman位移，研究结果表明：在常温（25 ℃）和100~800 MPa压力范围内，石膏中SO键的Raman谱峰的位移随压力的增加而向高波数方向移动，结晶水中羟基的两个伸缩谱峰随着压力的增加而向低波数方向移动，同时得到了各个谱峰与压力之间的关系式，其中结晶水中羟基的两个伸缩谱峰的d/dp值有较大不同，是由于结晶水中含有两个强度不同的氢键所致。
- 石膏 /
- Raman光谱 /
- 高压 /
- 金刚石压腔
Abstract: This paper measures the Raman peak displacements of the four vibration modes of SO bonding and the hydroxyl-stretching vibration modes in the gypsum at high pressures using diamond anvil cell. The experimental results show that at the temperature of 25 ℃ and the pressure of 100～800 MPa the Raman peak positions of the SO bonding in the gysum shift to high wave numbers with the increase of the system pressure, while the Raman peak positions of hydroxyl-stretching vibrations shift to low wave numbers with the increase of the system pressure. The relations between the Raman peak positions and system pressure were obtained, and the two d/dp values of hydroxyl-stretching vibrations show a great difference because of different intensity of the hydrogen bonding.
- gypsum /
- Raman spectra /
- high pressure /
- diamond anvil cell

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参考文献(14)

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文章访问数: 7406
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常温和100~800 MPa压力下石膏的Raman光谱研究

doi: 10.11858/gywlxb.2006.01.006

通讯作者: 郑海飞

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出版历程

Research on the Raman Spectra of Gypsum at Pressure of 100~800 MPa and Room Temperature

Corresponding author: ZHENG Hai-Fei

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出版历程

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通讯作者:
郑海飞