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:
Silicone Rubber 1
Silicone Rubber 2
|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
|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|