纳米压痕仪接触投影面积标定方法的研究
COMMENTS ON THE CALIBRATION TECHNIQUE OF THE PROJECTED CONTACT AREA OF NANOINDENTATION TESTER
查看参考文献21篇
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文摘
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基于Oliver与Pharr方法的纳米压痕实验以其简单方便获得广泛的应用,但众多因素对压痕实验结果的影响范围并无明确的结论.其中压痕接触面积的确定是一个重要环节,该因素对实验结果,特别是小深度下的实验结果具有重要影响.仔细分析了Oliver与Pharr方法并进行了几种材料的纳米压痕实验,针对该方法在接触深度确定、不同深度范围下方法的适用性进行了说明.分析结果表明,对所有的材料使用统一的面积公式,只有在大压痕深度时才是适用的,而在小压痕深度时可能带来较大的误差.因此,应慎重使用由Oliver与Pharr方法得到的小压痕深度的硬度数据. |
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其他语种文摘
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The nanoindentation test techniques especially the O&P method are analyzed and the nanoin-dentation tests are implemented. The analysis focuses on the determination of the contact area and the depth region of the application. Analysis results show that a common area formula for all materials justifies only at large indentation depth, and such a universal formula may lead to larger errors at small depth. Hence hardness values measured at small indentation depth based on O&P method must be used with care. |
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来源
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力学学报
,2005,37(5):645-652 【核心库】
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关键词
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纳米压痕
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硬度
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尺度效应
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地址
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1.
中国科学院力学研究所工程科学部, 北京, 100080
2.
北京航空航天大学航空科学与工程学院, 北京, 100083
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0459-1879 |
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学科
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力学 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:2037199
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