There has been much debate in recent years about the best way to perform elevated temperature nanoindentation tests, with thermal drift, noisefloor and tip erosion taking pride of place in the list of issues which can hamper such experiments. Anton Paar TriTec has been at the forefront of this development work, which has culminated in the release of its High Temperature Ultra Nanoindentation Tester (UNHT3 HTV). Previous work has shown that, besides oxidation, thermal drift is one of the main issues that will cause error in elevated temperature tests, with drift rates tending to increase with temperature. The solving of this issue in the UNHT3 HTV has taken significant development and has required many modifications to account for all possible variables.
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