What is nanoindentation used for?
Nanoindentation is used in universities and industries to characterize thin films in electronics and packaging products, advances alloys for cutting tools, coatings for thermal barriers, viscoelastic properties of polymers, microhardness in industrial quality and control, scratch and wear resistance and many more.
What properties can be measured by nanoindentation?
In this blog post, Alemnis explores the properties that can be measured by nanoindentation.
- Cracking and Fracture Toughness.
- Nanoindentation measures Creep Deformation.
- Nanoindentation detects Dislocation Nucleation.
- Elastic Modulus and Hardness.
- Storage and Loss Moduli.
- Nanoindentation with Alemnis.
What is the principle of nanoindentation?
The nanoindentation principle specifies that the surface of the sample is assumed to be plane, so the surface roughness of the sample is very important for the measurement of the contact depth. In general, the degree of influence of roughness can be determined by observing the dispersion of test results in a region.
How much does a Nanoindenter cost?
An IIT instrument with the capacity of performing nanoindentation generally costs above $100k. The requirement of special expertise and big budget substantially limits the further application of IIT technique in a broader market. An affordable, user-friendly and fully-automatic IIT system is in need.
Who invented nanoindentation?
Warren Oliver and Sir John Pethica. The core technology of the force-displacement nanoindenter includes electromagnetic actuation, chosen for its unmatched stability, combined with a 3-parallel plate capacitor to measure displacement.
What is Nano Hardness?
Nanohardness testing refers to hardness tests wherein the depth of indentation usually is less than about 50nm or equivalently, the indentation diameter/length is lower than about 150nm. From: Encyclopedia of Materials: Science and Technology, 2001.
What is nanoindentation testing?
Nanoindentation, also called instrumented indentation testing, is a variety of indentation hardness tests applied to small volumes. Indentation is perhaps the most commonly applied means of testing the mechanical properties of materials.
How is nanoindentation hardness calculated?
As the load is applied, the depth of penetration is measured. The area of contact at full load is determined by the depth of the impression and the known angle or radius of the indenter. The hardness is found by dividing the load by the area of contact.
What is nanoindentation?
Nanoindentation is a method of measurement of the mechanical properties of small volumes of materials using an instrumented indentation technique. Elastic modulus, hardness, fracture toughness, creep and dynamic properties such as storage and loss moduli can be measured.
What is nano indentation?
Nanoindentation is a variety of indentation hardness tests applied to small volumes. Indentation is perhaps the most commonly applied means of testing the mechanical properties of materials . The nanoindentation technique was developed in the mid-1970s to measure the hardness of small volumes of material.
What are the challenges of nanoindentation testing?
While nanoindentation testing can be relatively simple, the interpretation of results is challenging. One of the main challenges is the use of proper tip depending on the application and proper interpretation of the results. For instance, it has been shown that the elastic modulus can be tip dependent.
How deep can nanoindentation be used?
A general rule of thumb for thin film nanoindentation is to indent no more than 1/10 of the film thickness. The micro and macrotests might indent too deep and only measure the composite values. The stability of a nanoindentation system is outstanding which allows long term holding of the force or depth signals.