An indenter tip of a known geometry is driven into the sample by applying an increasing load up to some preset value. The load is then gradually decreased until partial or complete relaxation of the sample has occurred. The load and displacement are recorded continuously throughout this process. From the resulting load displacement curve, the nano-mechanical properties of the sample such as hardness, Young’s modulus, stress-strain studies, time dependent creep measurement, fracture toughness, plastic & elastic energy can be calculated.

There are two nanoindentation instruments available at the lab.

CSM Nano Hardness Tester


Spec. Value
Max. Load 500mN
Load resolution 0.04µN
Max. depth 200µm
Depth resolution 0.04nm

Nanoindentation Tester on CSM Homepage

Hysitron TriboIndenter TI900


Spec. Value
Load resolution <1nN
Depth resolution 0.0004nm
X/Y range 250x150mm
X/Y resolution 500nm
Stage Z range 50mm
Stage Z resolution 3nm

The TriboIndenter on the Hysitron Homepage


Indent scan
Scan of an indent
Indent scan
Indents in osteonal lamellae