APPLICATION OF RAMAN SPECTROSCOPY IN COMPOSITE SCIENCE
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摘要: 本文以Raman光谱方法的基本原理为依据,结合纤维复合材料研究对结构表征和性能测试技术的要求,评述了Raman光谱在本领域中应用所取得的成果。通过分析在测定界面应力分布、评价界面性质、表征界面和基体结构、测量残留应力等方面应用Raman光谱所遇到的问题,探讨了在研究纤维复合材料本构关系和跟踪复合材料加工过程等领域采用现代Raman光谱技术的前景。Abstract: The past decade has seen an increase in application of Raman spectroscopy in composite science. Messages used from this powerful method of structure characterization, however, are toalarge extentlimited to the linear variation of certain Raman frequency shifts with stress level in high perfo rmance fibers suchas carbon and aramid. In this paper, results of Raman spect roscopic studies on these fibers and their model composites are reviewed emphasizing their importance to the under standing of interfacial stress transfer mechanisms. Experimental aspects of applying Raman spectroscopy in inter facial stress measurement, interfacial structure characterization and residual stress measur ementare discussed systematically with examples. It is suggested that correct know ledge of Raman scattering processes from composites is the most important factor for further application of the technique in composite science.
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Keywords:
- Raman spectroscopy, composites, interface /
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