石英拉曼峰进行压力标定的误差研究

doi:10.3964/j.issn.1000-0593(2010)08-2161-03

CORC > 北京大学 > 地球与空间科学学院

	石英拉曼峰进行压力标定的误差研究; Study on the Accuracy of Pressure Determined by Raman Spectra of Quartz
	郭宁 ; 郑海飞
刊名	光谱学与光谱分析
	2010
关键词	金刚石压腔压力标定石英拉曼峰误差 DAC Pressure calibration Quartz Raman peak Error
DOI	10.3964/j.issn.1000-0593(2010)08-2161-03
英文摘要	在常温常压下进行了作为压标的石英颗粒的拉曼光谱测量和研究。研究结果发现,在25℃和常压条件下,不同的石英颗粒测得的Si—O振动模在463.59～464.65cm-1范围内变化,误差为(±0.1～±0.3)cm-1。其中不同石英颗粒拉曼峰的最大差异达1.06cm-1,远远大于其测量误差。我们认为这是由于石英破碎时使石英颗粒内产生的应力所致。因此,在进行金刚石压腔高温高压实验的压力确定时,必须以常压下实测的Si—O振动模测量值为零压参考点。另外,拉曼光谱仪的波数漂移以及环境温度的不稳定均会造成不可忽视的压力测量误差,应对此进行校正。; Quartz as a pressure gauge and its accuracy were studied by Raman spectroscopy at 25 degrees C and ambient pressure. The result shows that even at same temperature and pressure, the Si-O vibrational mode([1. 2]) for different grains of quartz varies between 463. 59 and 464. 65 cm(-1), with (+/- 0.1-+/- 0. 3)cm(-1) error. The maximum difference of various grains of quartz is up to 1. 06 cm(-1), much higher than the measurement error. The authors believe that the variety is resulted from the stress in the internal grains of quartz, which formed during crushing quartz into small grain. Therefore, Raman spectrum for quartz has to be firstly measured as a reference of zero pressure at ambient pressure and temperature in the experimental study by using diamond anvil cell. In addition, wavenumber drift of the spectrometer and the unstable temperature will also cause remarkable error for measuring pressure.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000280461100033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); EI; PubMed; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 08; 2161-2163; 30
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/48537]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	郭宁,郑海飞. 石英拉曼峰进行压力标定的误差研究, Study on the Accuracy of Pressure Determined by Raman Spectra of Quartz[J]. 光谱学与光谱分析,2010.
APA	郭宁,&郑海飞.(2010).石英拉曼峰进行压力标定的误差研究.光谱学与光谱分析.
MLA	郭宁,et al."石英拉曼峰进行压力标定的误差研究".光谱学与光谱分析 (2010).