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.
Original language | English |
---|---|
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Review of Scientific Instruments |
Volume | 76 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2005 |
Keywords
- Glass
- Zirconium compounds
- Aluminium compounds
- Test equipment
- Adhesion
- Friction
- Force measurement
- Strain gauges
ASJC Scopus subject areas
- Instrumentation