Instrumented Indentation Testing

As the validity of Instrumented Indentation continues to expand throughout all materials research, many throughout the community are still unclear as to what exactly can be achieved. Although advances in technology will continue to grow the list of capabilities of Instrumented Indentation, we will review a list of what can be expected as of now with the Nanovea Mechanical Tester. This will also be the focus of our mechanical application notes over the next several months. But first lets quickly review how Instrumented Indentation works.

An Indentation System utilizes high-resolution instrumentation to continuously monitor and control the displacement of the indenter as it enters and pulls back from the material. The software then applies various loading algorithms including sinus mode and multi-cycle testing. The data points collected during the indentation are plotted directly as depth versus load and unload curve. All of this data, depending on software function, can then be analyzed by any number of specifically known, or custom, algorithms to determine an endless list of other useful material properties other than just hardness. Therefore, in essence, the Nanovea Mechanical Tester can evolve based on the instructions, or algorithms given.

During a standard Instrumented Indentation test: Hardness, Elastic modulus, Work of Indentation, Volume of indent, Maximum Stress & Maximum Strain, Plastic Work & Elastic Work and % of Plastic work in relation to the total work of indentation are obtained. More specific tests can include Creep, Stress-Strain & Yield Stress, Fracture Toughness, Compression strength and Fatigue testing and many others. As you can see, there are endless uses for the Instrumented Indentation technique which ultimately makes educating in its totality very difficult. For example, after all that has been said, now keep in mind that this can be done at the nano through macro range and that Nanovea's Mechanical Tester also provides scratch and wear testing modes; its a lot to swallow. And it is for this very reason that the Nanovea Mechanical Tester has widest testing capability of any Instrumented Indentation system in world.
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Welcome - about us

Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

There is only one important assumption: you have to be interested in nano!

Nanopaprika is always looking for new partners, if you have any idea, contact me at editor@nanopaprika.eu

Dr. András Paszternák, founder of Nanopaprika

Publications by A. Paszternák:

Smartphone-Based Extension of the Curcumin/Cellophane pH Sensing Method

Pd/Ni Synergestic Activity for Hydrogen Oxidation Reaction in Alkaline Conditions

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations

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