High Temperature Mechanical Characterization of Tin (Sn)
Publication Number: 5990-6613EN
Publication Date: 2014.08.01
Language: English
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High Temperature Mechanical Characterization of Tin (Sn)

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Soft metals that exhibit time dependent deformation can be difficult to characterize using quasi-static nanoindentation testing due to creep – causing an increase in the penetration depth – while initially unloading the sample to measure stiffness. The problem is further compounded when testing samples at elevated temperature because traditional techniques of holding the peak force until the creep is minimized is not an option; tests must be completed in a timely manner to minimize the effects of thermal drift. A new test protocol has been developed for the Keysight Technologies, Inc. Nano Indenter G200 that allows dynamic testing to be completed in combination with the Heating Stage option using the Continuous Stiffness Measurement (CSM) technique. This enables accurate measurements of mechanical properties on time-dependent materials at elevated temperatures. This article demonstrates the new test protocol for measuring elastic modulus and hardness on high purity tin (Sn) over the temperature range from room temperature to 150 degrees Celsius. In addition, results from quasi-static testing of the tin sample are compared to results obtained using the continuous stiffness measurement technique.