Analysis of the nanoindentation load-displacement curves measured on high-purity fine-grained alumina
Analysis of the nanoindentation load-displacement curves measured on high-purity fine-grained alumina
复制标题
DOI：
10.1016/j.jeurceramsoc.2004.04.003
复制
发表时间：
2005-02-01
影响因子：
5.7
通讯作者：
Miao, HZ
中科院分区：
文献类型：
--
作者：
Gong, JH;Peng, ZJ;Miao, HZ
本文对微观结构不均匀性对纳米压痕数据再现性的影响进行了初步研究。对一种高纯度、细粒氧化铝陶瓷进行了纳米压痕试验。结果表明，纳米压痕数据的重现性较差。然后使用广泛使用的oliver - phar方法对纳米压痕数据进行分析，得出硬度H和杨氏模量e。在得到的H和e中观察到大的散射。这些实验结果表明，微观结构的不均匀性可能在材料对纳米压痕的响应中起重要作用。(c) 2004 Elsevier Ltd.版权所有。
This paper conducted a preliminary examination on the effect of microstructural inhomogeneity on the reproducibility of the nanoindentation data. Nanoindentation tests were conducted on a high-purity, fine-grained alumina ceramic. It was found that the reproducibility of the nanoindentation data were somewhat poor. The nanoindentation data were then analyzed with the widely employed Oliver-Pharr method to yield the hardness, H, and the Young's modulus, E. Large scatters were observed in the resultant H and E. These experimental findings revealed that microstructural inhomogeneity may play an important role in the material response to nanoindentation. (c) 2004 Elsevier Ltd. All rights reserved.