制样压应力对显微拉曼光谱法获取碳材料结构参数的影响  

Influence of Compressive Loads on Structure Parameter by Micro-Raman Spectroscopy Analysis

作　　者：李同起[1] 吴宁宁[1] 高晶[1] 张薇薇[1] 

机构地区：[1]航天材料及工艺研究所,先进功能复合材料技术国防科技重点实验室,北京100076

出　　处：《宇航材料工艺》2011年第1期101-104,共4页Aerospace Materials & Technology

基　　金：国防科技工业技术基础科研项目(T032007B002);国家重点基础研究发展计划(973)项目(2006CB600907);国家安全重大基础研究项目(61380020202)

摘　　要：为了研究金相制样过程中压应力对获取碳材料拉曼特征参数R的影响,对不同温度处理的碳纤维和树脂碳进行了研究。结果表明,制样过程中的压应力对准确获取碳材料的拉曼特征参数具有一定的影响,尤其是对经过高温处理硬度较小的碳材料的影响更大,造成了碳材料R的增大。建议在制备碳材料的显微拉曼光谱测试试样时采用较小的压应力。To investigate the influence of the compressive loads during the sample preparation on the structure parameter（R） of Raman spectroscopy,the carbon fibers and the resin-based carbon materials heat-treated at different temperatures were used.It was found that the compressive load exerted some influence on the different carbon materials to increase the Rs of them.When the carbon materials are the softer ones derived from the heat-treatment at high temperatures,the R values are easier to be enlarged.Therefore small compressive loads are suggested to apply to the samples for micro-Raman spectroscopy analysis during the metallographic sample preparation process.

关 键 词：拉曼光谱 结构参数 制样方法 压应力 

分 类 号：TQ127.11[化学工程—无机化工]