Mechanical characterization using indentation experiments
Conference
·
OSTI ID:10177646
- Oak Ridge National Lab., TN (United States)
- Rice Univ., Houston, TX (United States). Dept. of Materials Science
Ultra-low load indentation experiments offer a flexible technique for characterizing the mechanical properties of thin films and small volumes. Techniques now exist for the measurement of strength (hardness), modulus, and the stress exponent for creep. Improved techniques for calculating hardness and modulus using the load-displacement data from ultra-low load indentation experiments are presented. Results from six materials with a wide range of hardnesses and moduli are used to compare contact areas calculated from load-displacement data to imaged areas. In addition, moduli are compared with literature values. Results show that the model used is quite accurate for the six materials investigated. A comparison of results from compression testing and indentation creep experiments on a low melting Pb-In alloy suggest that suchindentation creep experiments reflect transient creep properties. Results from a study of the mechanical properties, including hardness, modulus and stress exponent of amorphous Al{sub 2}0{sub 3} and sapphire are also presented.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400; AC05-76OR00033
- OSTI ID:
- 10177646
- Report Number(s):
- CONF-9206271--3; ON: DE92040883
- Country of Publication:
- United States
- Language:
- English
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