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Title: Manually operated scratch tester for characterization of mechanical properties of thin films
Authors: Wang, H
Ong, CW 
Tsui, YC
Lau, WM
Keywords: Glass
Zirconium compounds
Aluminium compounds
Test equipment
Force measurement
Strain gauges
Issue Date: Jan-2005
Publisher: American Institute of Physics
Source: Review of scientific instruments, Jan. 2005, v. 76, no. 1, 016101, p. 1-4 How to cite?
Journal: Review of scientific instruments 
Abstract: Based on the assumption that the results of a scratch test would not be affected significantly by some degree of variations of the rising rate of normal load and the speed of scratching, a manually operated scratch tester was developed for investigating the adhesion properties of coatings. The system can detect the friction force and normal load generated during a test, and identify the critical normal load L[sub c] where the friction force becomes unstable. Measurements were made on glass, zirconium nitride coatings and aluminum oxide coatings for examining the reliability of the system. L[sub c] of the three samples were 2.0±0.41 N, 1.4±0.32 N, and 0.52±0.13 N. Results show that the system is good enough to serve as an economical replacement for a conventional scratch tester.
ISSN: 0034-6748
EISSN: 1089-7623
DOI: 10.1063/1.1834706
Rights: © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in H. Wang et al., Review of scientific instruments 76, 016101 (2005) and may be found at
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