Home TribologyResearch TribologyEquipment TribologyPublication TribologyPhoto Gallery
Tribology Top Logo

Clean Booth (4 X 3.9 m):


The clean booth is constructed inside the clean room environment (MNSI lab). It is
designed to meet class 100, 1000 & 10,000. The Nanoscratch tester, Nanotribomter,
DMEMS optical profiler and polymer jet printer are stationed inside this clean booth.

Clean Room

The photograph showing the clean booth inside MNSI lab, E2-04-01.

Nanoscratch tester:

The nanoscratch tester is to evaluate the adhesion strength of various metallic or lubrication layers. The AFM and optical attachments will help to understand the associated scratch/wear mechanisms. Apart from scratch tests, this tester can also be used for some controlled sliding experiments.

Scratch Tester

Specification of the Scratch Testers

 

Nano

Normal Force Range

10 μN to 1 N

Load Resolution

0.15 μN

Maximum Friction Force

1 N

Friction Resolution

0.3 mN

Maximum Scratch Length

120 mm

Scratch Speed

0.4 to 600 mm/min

Maximum Depth

2 mm

Depth Resolution

0.6 nm

XY Stage

120 x 20 mm

 

245 x 120 mm (for OPX*)

XY Resolution

0.25 μm

 

0.1 μm (optional)

Video Microscope Magnification

200x, 800x, 4000x

Video Microscope Camera

Color 768 x 582+

 

NanoTribometer:

The nanotribometer is use for friction and wear tests at lower loads with high precision of friction measurements. The equipment has capability to measure the friction in reciprocation and rotational sliding. Nanotribometer has different cantilevers with different sensitivity and it uses optical sensing method to measure frictional forces.

 

Nano Tribometer

 

Specification of the NanoTribometer

 

Nano

Load range

50 μN - 1 N

Load resolution

0.1μN

Maximum Friction force

10 μN - 1 N

Friction resolution

1 μN

Maximum temperature Rotation

-

Speed

1 - 100 rpm

Maximum test radius

30 μm - 10 mm

Maximum torque Linear module

-

Stroke length

10 - 500 μm

Speed

Up to 10mm/sec

Frequency

0.1 - 10 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

Dynamic MEMS Optical Profiler:

The DMEMS-equipped Wyko NT1100 is to offer both dynamic measurement and static, white light profiling of rough surfaces and large steps. The DMEMS system captures a series of 3D measurement data, generating a video of the sample device as it cycles through its range of motion. Analysis software determines resonant frequency, shape/distortion, deflection, and other key device parameters. 

Dynamic MEMS Optical Profiler


Specification of DMEMS optical profiler

Static measurement performance Vertical Measurement Range

 

 0.1 nm o 1 mm 

 

Vertical Resolution

< 1 Å Ra

RMS Repeatability

0.01 nm

Vertical Scan Speed

Up to 14.4 µm/s

Dynamic measurement performance

 

 

Vertical Measurement Range

Heights or deformations up to 1 mm

Vertical Motion Resolution

≤ 1 nm

Waveforms

DC, sine, triangular, user-defined

Frequency

15 Hz to 1 MHz  

Frequency Resolution

0.01%

Voltage

± 200V

Phase

0 – 360°

Phase resolution

0.05°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Polymer Jet Printer:

The drop-on-demand single jet dispensing devices which operate from room temperature to high temperatures are suited for dispensing droplets of aqueous and solvent-based fluids.  An integrated orifice and wetted surfaces which are usually made from glass are robust to aggressive fluids.  Orifice diameters of 20-80 µm are available, allowing customers to optimize their processes by selecting volumes within a range of two orders of magnitude.

Polymer Jet Printer

 

Specification of Polymer Jet Printer 

Fluids properties Viscosity

 Less than 20 cp

Surface Tension

20-70 dynes/cm

Fluid dispensing temperature

Up to 250°C

Fluid surface Tension

20-500 dynes/cm

Substrate size

160 X 120 mm

Position accuracy

± 30 µm

Position Repeatability

± 20 µm

 

Ultra-high Speed Tribometer:

Ultra High Speed Tribometer

This tribometer is custom-built especially for high speed rotation. Maximum speed is 20,000 rpm. Tested specimen is screwed with a cap on top of the spindle. Laser displacement sensors are used to measure the normal force applied and frictional force generated.

 

Microtribometer:

Microtribometer

Microtribometer (UMT-2, Universal Microtribometer, CETR, USA): This is a universal micro tribometer which can be used for both ball-on-disk (or pin-on-disk) and ball-on-plate (or pin-on-plate) sliding tests to measure friction and wear. Additional modes of operation include micro-indentation and micro-scratching. Normal load range: 1g-500g and Disk speed range: up to 5000rpm.

 

VCA Optima Contact Angle:

VCA Optima Contact Angle

The contact angle is able to measure for static and dynamic (time-based) contact angle, up to 60 frames/second. The application can determine surface cleanliness, evaluate cleaning methods and study adhesion, wetting behavior, bonding quality, surface treatments and coatings on fiber, fabric, polymer, semiconductor wafer, hard disk, flat panel displays and biomaterials.

 

Pin-on-Disk Apparatus:

Pin-on-Disk AppPin-on-Disk App2

The Pin-on-Disk machine is able to carry out wear tests according to ASTM G99-05Standard Test Method for Wear Testing with a Pin-on-Disk Apparatus. The machine is able to accommodate a track diameter of 40 to 70 mm, and dry or lubricated tests can be carried out using a spherical or cylindrical pin. A friction force of 1 to 15 N could be measured. The motor used is able to run at speeds between 60 to 550 rpm.  

              

Sonic Vibra Cell:

The VCX 130 PB Ultrasonic processing is fast and highly reproducible compared to mechanical homogenizers.  Probes are practically self cleaning, and by virtue of their design and finish, account for negligible sample losses.  Feedback from the probe is continuously evaluated, and the frequency and power automatically adjusted to ensure constant amplitude.

Sonic Vibra Cell

 

Oven with vacuum:

Vacuum Oven



Equipments

 

 

Top Logo MS

Nationals University of SingaporeMechanical Engineering


Best viewed with Mozilla Firefox 3.5 and above
Last Modified on May 11, 2011