Monitoring of Brittle-Ductile Transition during AFM Machining Using Acoustic Emission

Abstract:

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An atomic force microscope (AFM) with suitable tips has been used for nano fabrication/nanometric machining purposes. In this paper, acoustic emission (AE) was introduced to monitor the nanometric machining of a brittle material (silicon) using AFM. In the experiments, AE responses were sampled, as the tip load was linearly increased (ramped load), to investigate machining characteristics during continuous movement. By analyzing the experimental results, it can be concluded that measured AE energy is sensitive to changes in the mechanism of material removal including the ductile-brittle transition during nanometric machining. The critical depth of cut value for the transition is evaluated and discussed.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

405-408

DOI:

10.4028/www.scientific.net/KEM.326-328.405

Citation:

S. H. Lee, B. W. Ahn, "Monitoring of Brittle-Ductile Transition during AFM Machining Using Acoustic Emission", Key Engineering Materials, Vols. 326-328, pp. 405-408, 2006

Online since:

December 2006

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Price:

$35.00

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