The nanoscale dynamic mechanical analysis (nanoDMA) technique is accomplished on a nanoindenter with a dynamic mechanical testing package and heating/cooling stage. It is performed by superimposing a small sinusoidal load on top of a larger quasi-static load during a nanoindentation test. The resultant total indentation displacement into the sample, the dynamic displacement amplitude, and the phase shift from the dynamic load input are recorded and analyzed to yield storage modulus, loss modulus, tangent delta and other mechanical properties and characteristics of the material surfaces.

The nanoDMA technique can be applied for characterizing viscoelastic materials for time dependent properties under controlled temperatures. Typical properties obtained via this powerful technique include complex modulus, storage modulus, loss modulus, tangent delta, frequency dependence, strain rate effect, temperature influence, depth profile, etc.

Typical Experimental Results:

nanodma

Silicone Rubber 1

 

nanodma

Silicone Rubber 2

 

nanodma

Polycarbonate

Applications:

Complex Modulus Compression Controlled Force/Strain Rate
Creep Compliance Equilibrium Recoverable Compliance Film Analysis
Frequency Effect Glass Transition Isostrain
Loss Modulus Multi-Frequency Relaxation Modulus
Sample Stiffness Secondary Transitions Static/Dynamic Force
Storage Modulus Storage/Loss Compliance Stress Relaxation
Stress/Strain Behavior Tan Delta Viscoelastic Characterization

For more information please read our application notes.

Instruments: Multi-Technique and Full-Feature Nanoindentation System

instrument

Key Specifications:

Temperature Range 5 to 300 °C
Displacement Resolution 0.02 nm
Force Range 30 nN to 10 mN
Force Resolution 1 nN
Frequency Range 1 to 300 Hz
Atmosphere Open Air, Inert Gas