Semiconductors
Scratch adhesion, low k material, modulus, hardness, friction |
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Hard disk industry
Friction, cof, hardness. Overcoats, protective coatings on CD, polishing |
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Wear Resistance Coatings
DLC, WC, hard coatings, wear,
scratch hardness, nano
indentation, friction |
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Optical Components
LCD, glass, windows, lenses,
plasma displays, LED |
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Thin films
DLC, CVD, PVD, decorative coatings, solar cells, MEMS, etc. |
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Aerospace
Nano indentation, tribology scratch hardness, adhesion, etc. Hard disk industry |
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Biomedical
Joints, knee, bone, dental, skin, hair , sutures, stent, contact lens, tissues, implants, pumps, optical lens, pumps, etc. |
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Micro-mechanical tests have been used to measure mechanical properties of coatings or bulk materials. Instrumented micro-mechanical test improves on the traditional ones by providing in-situ load-displacement data and by using advanced signals like acoustic emission, ECR, friction,
etc. for more comprehensive characterization.
CETR microindenter MH-3 is provides precise surface mechanical haracterization data by
indenting at shallow depths. It can do the following tests using the same head
Instrumented Micro Indentation
Per the ISO 14577 on macro-scale (for loads greater than 2
N) and micro-scale (loads under 2 N) to calculate hardness, Young’s modulus, tensile and von
Mises stresses, contact stiffness, etc. of coatings and bulk materials.
Micro Scratch
At constant, increasing and user-defined programmable load to evaluate scratch
hardness and scratch adhesion of coatings.
Dynamic indentation
With vibrating tip to measure depth dependent loss and storage modulus.
Vickers and Knoop micro-hardness
Per the ASTM E384-99, substantially similar to the Vickers
macro-hardness, but under lower loads (0.1 to 10 N). Both tests use small diamond pyramid
indenters with different bases: square for the Vickers and rhomb for the Knoops (with the face
angles of 172.5º and 130º, one diagonal being 7.1 times longer than the other). After the indentation, the Vickers hardness is calculated based on the average length of two indent
diagonals, while the Knoop hardness is calculated from the length of the longest indent diagonal.
Both micro-hardness scales are used for coatings, though the Knoop is more common for thin
coatings.
The Micro Head (MH-3) by default comes installed on a dedicated advanced nano and micro indenter and scratcher model APEX. But the Micro head can also be attached to the Universal Mechanical Property Tester model UMT
Features
- Mapping of unlimited number of indents.
- In-line imaging options (3d profiler recommended).
- High throughput and repeatability.
- Optional advanced in-situ sensors.
- Thermal & acoustic enclosure, vibration isolation table.
- ASTM, DIN and ISO compliant.
- User definable analysis algorithm or models to calculate material properties.
Published Papers and Applications
Nanoindentation and Scratch
Coating Analysis for Scratch, Adhesion, Hardness, Wear etc.
Biomaterials Testing
Thin Film Testing
Nano and Micro Indentation and Scratch test on Metals
Surface coatings and Technology 197 (2005)
Novel Lateral Force sensing for Micro Indentation method to evaluate bond strength of thermal spray coatings
Surface coating and Technology 197 (2005)
MORE PUBLISHED PAPERS
Contact CETR to discuss your testing needs in detail, for more information and pricing or to set up an appointment to visit our lab in Northern California. You will surely be pleased with our wide expertise, unique equipment and friendly effective services.
