| 应用纳米压痕技术表征水泥基材料微观力学性能 |
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| 引用本文： | 周伟玲,孙伟,陈翠翠,缪昌文.应用纳米压痕技术表征水泥基材料微观力学性能[J].东南大学学报(自然科学版),2011,41(2):370-375. |
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| 作者姓名： | 周伟玲 孙伟 陈翠翠 缪昌文 |
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| 作者单位： | 周伟玲,Zhou Weiling(东南大学材料科学与工程学院,南京,211189;江苏省建筑科学研究院有限公司高性能土木工程材料国家重点实验室,南京,210008);孙伟,Sun Wei(东南大学材料科学与工程学院,南京,211189);陈翠翠,缪昌文,Chen Cuicui,Miao Changwen(江苏省建筑科学研究院有限公司高性能土木工程材料国家重点实验室,南京,210008) |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 为了更好地研究和表征水泥基材料的微观结构及形成机理,对水泥净浆及掺粉煤灰的水泥浆体进行了微观力学性能研究.应用纳米压痕技术测试、分析并计算了不同浆体中各个区域的弹性模量和硬度,并对各参数在二维平面的分布进行了描绘.同时,利用高斯函数对弹性模量、硬度的频率分布曲线进行了多峰拟合,获得水化产物中毛细孔、高密度C-S-H凝胶...
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| 关 键 词： | 纳米压痕技术 粉煤灰 水泥基材料 微观力学性能 |
Characterization for micro mechanical properties of cementitious materials by nanoindentation technique |
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| Zhou Weiling, Sun Wei Chen Cuicui Miao Changwen.Characterization for micro mechanical properties of cementitious materials by nanoindentation technique[J].Journal of Southeast University(Natural Science Edition),2011,41(2):370-375. |
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| Authors: | Zhou Weiling Sun Wei Chen Cuicui Miao Changwen |
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| Institution: | Zhou Weiling1,2 Sun Wei1 Chen Cuicui2 Miao Changwen2 (1School of Material Science and Engineering,Southeast University,Nanjing 211189,China) (2State Key Laboratory of High Performance Civil Engineering Materials,Jiangsu Academy of Building Science Co.,Ltd.,Nanjing 210008,China) |
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| Abstract: | Micro mechanical properties of cement paste and paste with fly ash were studied to get better characterization of their microstructure and developing mechanism.Micro mechanical properties of different pastes were tested by nanoindentation technique.The elastic modulus and hardness of indented area are calculated and mapped in a 2D plane.After that,multi peak fitting were carried out for the frequency plots of the tested parameters by Gaussian function.And the statistical distribution of the micro mechanical... |
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| Keywords: | nanoindentation technique fly ash cementitious material micro mechanical properties |
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