Nanoindentation for Nano-mechanical Testing (Nanoindentation) (Computers - Information Technologies)

Item ID 15306065 in Category: Computers - Information Technologies

Nanoindentation for Nano-mechanical Testing (Nanoindentation)


Nanoindentation for Nano-mechanical Testing (Nanoindentation)

Nanoindentation is a proven method for conducting mechanical indentation tests on very small samples (Nano-mechanical Testing). Conventional indentation testing instruments do not measure micro-forces, or displacements and indentation areas at micron or nanometer scale. Nanoindentation testing involves the use of high-precision instruments as well as analytical software. The Nanoindentation technique utilizes a sharp indenting probe of defined geometry. Typically, a calibrated Berkovich diamond tip, shaped like a three-sided pyramid, capable of being sharpened to an atom size point, is used in Nanoindentation for Nano-mechanical testing. It is possible to have tips with in-situ SPM (scanning probe microscopy) capability, providing high resolution imaging of the specimen before and after indentation.

The Nanoindentation test is performed by pressing the indenter tip into the sample by applying a linearly increasing force. Once the targeted force is reached, the loading is continuously decreased until partial or complete relaxation of the sample occurs. The tip displacement and applied load are continuously recorded. For nanomechanical testing, the applied force is in the nanoNewtons to milliNewtons range and displacement is also of the order of microns or nanometers. The indentation area is computed from the tip geometry. A short pause at maximum load allows investigation of creep properties. The recorded load and displacement data, along with the calculated indentation area are used to determine mechanical properties such as elastic modulus and hardness. Various other loading modes are also possible, to determine a range of properties. These include cyclic loading for measuring fatigue or plastic-elastic deformation and Dynamic Mechanical Analysis (DMA) for obtaining visco-elastic properties of samples.

The Nanoindentation technique can be applied to a wide range of metallic and non-metallic materials, to determine a range of mechanical properties such as hardness, elastic modulus, fracture toughness, creep and dynamic properties such as storage and loss moduli.


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Target State: New Jersey
Target City : Newark
Last Update : Jul 28, 2023 11:48 AM
Number of Views: 89
Item  Owner  : Infinita lab
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