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Pin-on-Disk Tribometer
Mini-PoD-1
Four repeat rotating PoD tests on a DLC coated hardened steel sliding against a 1 mm diameter WC ball. The four repeats show excellent reproducibility suggesting good consistency of coating and interface across the tested area. Coating failure was seen to occur at between 60% and 90% of the test duration (144,000 to 216,000) revolutions.
The Pin-on-Disk Tribometer is one of the most fundamental tools for the study of friction and wear.
It works by measuring the lateral (frictional) force acting on the "pin", usually a sphere of a chosen relevant material, whilst it is held against a rotating or reciprocating sample (the "disk") under a known load.
The contact conditions may all be user defined, including; Normal Load, Sliding Velocity (linear or rotational), Total Sliding Distance, Pin material and geometry, etc.
Tests may be anywhere from seconds to tens of hours in duration and data are gathered in easy-to-read and re-plot text file form.
The Mini PoD-1 offers materials researchers access to Pin-on-Disk tribology testing at a fraction of the price of other such instruments on the market. It also offers a simple and space-saving "computer-less" design where experiments are defined via a simple touchscreen interface and data are saved to a micro SD card.
Most material types, polymers, metals, ceramics, coatings etc may be tested. It is also possible to work under lubricated conditions and a high-precision humidity controlled system is optionally available covering the range 10% to 90% RH.
Screen shot from a reciprocating sliding test. Real-time data are shown in terms of frictional force (mN) versus test time (s). All test conditions are set via a simple, intuitive touchscreen interface and data are saved to a micro SD card.
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