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纳米力学探针的基本原理及其应用实例
引用本文:林志,王艳丽,林均品,陈国良.纳米力学探针的基本原理及其应用实例[J].航空材料学报,2001,21(4):56-61.
作者姓名:林志  王艳丽  林均品  陈国良
作者单位:北京科技大学
摘    要:介绍了一种新型的材料微区力学性能检测系统NanoIndenterII纳米显微力学探针。纳米显微力学探针是一个压入系统 ,其实验过程全部由计算机控制 ,压头的位移精度可达到 +/ - 0 .0 4nm ,因此可以研究材料的微区力学性能 ,它更适合于分析各种镀膜材料、离子注入材料、表面改性等材料的硬度分布及其弹性模量。它与显微硬度计的最大差别在于它能连续记录载荷 位移数据 ,通过载荷 位移数据计算材料微区的硬度和弹性模量 ,而不需要通过光学方法测定压痕面积 ,因此避免了测量和材料弹性恢复引入的误差。本文阐述了它的实验原理、硬度及弹性模量的计算方法并列举了它在材料科学中的应用

关 键 词:纳米力学探针  硬度  弹性模量
文章编号:1005-5053(2001)04-0056-07
修稿时间:2001年9月20日

The experimental principle of Nano Indenter II and its applications
LIN Zhi,WANG Yan li,LIN Jun pin,CHEN Guo liang.The experimental principle of Nano Indenter II and its applications[J].Journal of Aeronautical Materials,2001,21(4):56-61.
Authors:LIN Zhi  WANG Yan li  LIN Jun pin  CHEN Guo liang
Abstract:As a new system for determining the mechanical properties of materials, Nano Indenter II mechanical properties microprobe (MPM) is introduced.The MPM is an indentation system controlled by computer. Its displacement accuracy of indenter can reach +/-0.04nm. Therefore, it can be used to study mechanical properties of materials in micro scale. Because of its high accuracy of indenter displacement, it has the advantage of studying thin foil materials, ion implanted materials and surface modified materials. The major difference between the MPM and the conventional hardness tester is that the MPM can record continually the load displacement data and then figure out the hardness and elastic modulus from the data. In this way the measurement of indent area is not needed. Therefore, the error of the measurement is avoided. The experimental principle of the MPM and the calculations for hardness and elastic modulus are stated.Its applications in materials science are demonstrated.
Keywords:nano indenter  hardness  elastic module
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