Tribology Laboratory

About the Laboratory

Tribology instruments measure the mechanical properties of interacting surfaces in relative motion which often includes the study of friction, wear and lubrication. Tribology testing can measure many materials such as metals (ferrous and non-ferrous), ceramics, polymers, film coatings, and biological specimens. Investigation on the effects of lubricants, oils, and greases on the wear and corrosion properties for materials. Common tribological test modes include:

  • Ball/Pin Disk Friction Test
  • Ball/Pin on Flat Wear Test
  • Micro-Scratch Test
  • Micro-Indentation Test (Hardness)

Laboratory Contact

Location:
G88

Phone Number:
(306) 966-1726

Laboratory Managers:
Jason Maley

Instruments and Techniques Used In Lab

UMT-2 Base Technical specifications

  • Measure load ranges in 1 mN to 200N range
  • MAX Torque
  • Load/Friction 2 channel signal conditioner with up to 6 additional channels for advanced sensors
  • Maximum lateral travel: 75 mm (encoder resolution: 0.25 µm; position resolution: 1 µm; speed 0.001-10 mm/s)
  • Maximum vertical travel (encoded): 150 mm (encoder resolution: 0.5 µm; position resolution: 2 µm; speed: 0.002-10 mm/s)
  • Maximum load: 200 N

Slow reciprocating Linear Drive (Horizontal Motion)

  • Maximum travel (y-axis): 50 mm (encoder resolution: 0.25 µm; position resolution: 1 µm; speed 0.001-10 mm/s)
  • Maximum load: 1000 N (100kg)
  • Custom-built liquid cells can be built for sample specimens (see Physics Machine shop)

Medium Load Rotary Drive (Vertical Axis, Axial Loading)

  • Continuous, incremental, and oscillating motion in clockwise and counterclockwise rotation
  • Rotary speed: 0.1-5000 rpm
  • Torque: 0.3 Nm @2500 rpm
  • Maximum load: 200 N (20kg)

DFH-5 Friction/Load Sensor

  • 2-axis high range friction/load sensor
  • Range: 0.5-50 N (0.5-5 kg);
  • Resolution: 2.5 mN (0.25 kg)
  • Suspension and rigid adapter
  • Adapters for ball bearings, stylus probes, Rockwell tip, micro-cutting blade holder, etc.

FL Friction/Load Sensor

  • 2-axis low range friction/load sensor
  • Range: 5-500 mN (0.5-50 g)
  • Resolution: 50 µN (5 mg)
  • Suspension and rigid adapter
  • Adapters for ball bearings, stylus probes, Rockwell tip, micro-cutting blade holder, etc.

For more detailed information, click here

Nanoindentation is used to evaluate the nano-mechanical properties of thin films and nanocomposites. It uses a Berkovitch diamond nanoprobe which can be used to measure the nano-hardness and elastic modulus of the materials. The typical materials used in these types of measurements are thin films, coatings, polymers, biomaterials. Samples are typically polished and metallographically mounted to ensure consistent measurements.

Instrument: Centre for Tribology, Inc. (CETR) UNMT-1 with NH-1 Nanohead (now part of Bruker

UNMT-1 Base Technical Specifications

  • Measure load ranges in 1 mN to 200N range
  • Maximum lateral travel: 75 mm (encoder resolution: 0.25 µm; position resolution: 1 µm; speed 0.001-10 mm/s)
  • Maximum vertical travel (encoded): 150 mm (encoder resolution: 0.5 µm; position resolution: 2 µm; speed: 0.002-10 mm/s)

NH1- Nanohead

  • Maximum Load (mN): 500 (digital Resolution: 5 nN; load ranges: ±4, ±40, ±400)
  • Displacement (µm): 400 (digital resolution: 0.04 nm; displacement ranges: 0.1, 1, 10, 100, 200)

For more detailed information, click here

Contact angle measurements are used to determine the wettability of a solid surface by a liquid. The most common technique is the sessile drop method in which the liquid is dropped on the surface and the angle formed by a liquid drop on a surface where the liquid, solid and gas meet. If the droplet spreads onto the surface, the liquid is attracted to the surface resulting in a low contact angle. When the liquid has a high contact angle. The liquid is repelled from the interface and will create a bead of liquid on the surface.

Instrument: Droplet Lab Dropometer

Modules:

  • Sessile Drop Method
  • Surface Tension
  • Sliding Angle Measurements
  • Surface Energy

For more detailed information, click here

Training Information

For further information regarding usage and training of the instruments in this lab, please contact the laboratory manager.