Universal Nanomechanical Testing System

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Nanoindentation >Universal Nanomechanical Testing System
                                               
A new dimension
           
           
           
           
           
           
           
           
           
           
ZwickRoell has introduced the ZHN Nano indenter to deliver the highest levels of accuracy for research, product development and quality control. Applications in the metals and industrial tooling sectors often involve studies of materials in support of new products. Data from nanoindentation tests supports the product development cycle and enables engineers to analyse whether the material will perform suitably in its intended application.

 

The ZHN universal nanomechanical tester is used for comprehensive, mechanical characterization of thin layers or small surface areas with the necessary force and travel resolution. This includes measuring indentation hardness, indentation modulus, and Martens hardness to ISO 14577 (instrumented indentation testing).

 

  • Applications
  • Testing concept
  • Optic options
  • Accessories
  • Technical data
  • Applications
  • Specimen heater
  • Software

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    Key Advantages and Features
  • Modern software, with clearly structured design
  • Stiff frame design with indenter axis exactly in the movement axis (no tilting moment)
  • High degree of modularity provided by:
  • interchangeable measuring heads in normal (2 N / 0.2 N) and lateral directions, allowing realistic modeling of loading conditions
  • unique tandem optics (developed for space travel) with 2 cameras; can be expanded for up to 4 different magnifications
  • software structure features function / application modules for hardness and Young's modulus tests, scratch test, cyclic indentation test and indentation test with superimposed oscillation
  • Various specimen holders available, including holders with insulated specimen carriers for tip – specimen contact resistance measurement
  • Ample room in all directions, with precise step size and high resolution:
  • X-direction: 100 mm
  • Y-direction: 200 mm
  • Z-direction: 70 mm
  • New enclosure design with improved thermal and acoustic insulation

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    ZHN Applications
    Hardness and Young's modulus to DIN EN ISO 14577.

     

    Hardness sequence with a Berkovich indenter

    Measurement is typically performed with a Berkovich indenter with force control/ Fast measurements are possible, for example with 6-s load, 5-s hold time, and 3-s load removal.

  • Measurable values:
  • Indentation hardness HIT (revaluate in HV)
  • Martens hardness HM or HMs
  • Indentation modulus EIT (elasticity modulus)
  • Indentation creep CIT or relaxation RIT
  • Ratio of elastic deformation component to indentation energy nIT

    • A total of more than 60 values can be determined.

    Vickers hardness.

    Overview of relative deviation of Vickers hardness

    Depth-dependent measurements with QCSM module.

    Schematic diagram of QCSM method sequence

    Determination of stress-strain curve with neural networks.

    Micro wear tests.

    Wear tests with a diamond sphere (radius of 55 μm) on a DLC coating Left row 1000 mN, right row 1500 mN load Amplitude 50 μm, measurement time 1800 s

    Scratch and micro-scratch tests.

    Scratch test on a coating on silicon, Fmax 500 mN

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