High Temperature Ultra Nanoindentation (UNHT³ HTV)

Anton Paar offers the High Temperature Ultra Nanoindentation Tester (UNHT³ HTV), which is a pioneer in high temperature, environmentally controlled indentation with several solutions up to 800°C and down to -150°C temperatures.

The patented technology of the High Temperature Ultra Nanoindentation Tester (UNHT³ HTV),  at room temperature is the basis of the actuating system.

For sustaining high temperature testing, different components have been modified; for providing a thermal barrier between the depth and force sensors and the heated sample, thermal bridges have been added and for enabling cooling of the heated components, water circulation has been included. For limiting the heat on the components exposed to the heating stage, a reflective mirror has been installed.

Key Features

The key features of the High Temperature Ultra Nanoindentation Tester (UNHT³ HTV), are:

  • Active top referencing (Patented Design EP 1828744 and US 7,685,868,B2)
  • The head is made of ZeroDur® glass and the raw drift rate of the electronics system is <1ppm/°C
  • It has a removable reference, which can be of different shapes (ball, pin, etc). The reference has its own load sensor and Piezo actuator. It applies a minimal feedback loop control load on the sample.
  • Highest possible frame stiffness: infinite frame stiffness (>108N/m)
  • Innovative material design without any thermal expansion
  • A synthetic granite frame, ZeroDur and the patented active top referencing system are used ensuring that frame compliance is maintained at an absolute minimum.
  • Patented sample heating up to 800°C with +/- 0.1°C resolution
  • Sample cooling down to -150°C with +/- 0.1°C resolution (Measured at European Commission Joint Research Centre (JRC) (NL))
  • Vacuum system down to 10-6MBar
  • Patented tip and reference heating

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