TRIBOMETERS COMMONLY USED FOR BIO TRIBOLOGICAL …riverssolutions.com/Products/RAMO...
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TRIBOMETERS COMMONLY USED FOR BIO TRIBOLOGICAL APPLICATIONS • Micro Pin on Disk (Micro PoD) - Angular Oscillation Module - Inverted configuration (Inver PoD) • Linear Reciprocating Tribometer - Types - Configurations - Considerations DUCOM – THE TRIBOLOGY COMPANY
Transcript of TRIBOMETERS COMMONLY USED FOR BIO TRIBOLOGICAL …riverssolutions.com/Products/RAMO...
TRIBOMETERS COMMONLY USED FOR BIO TRIBOLOGICAL APPLICATIONS
• Micro Pin on Disk (Micro PoD) - Angular Oscillation Module - Inverted configuration (Inver PoD) • Linear Reciprocating Tribometer - Types - Configurations - Considerations
DUCOM – THE TRIBOLOGY COMPANY
Our Locations and Representations
OUR LOCATIONS
Bangalore (India) Chicago (USA) Ducom European Office Groningen, Netherlands
DUCOM – THE TRIBOLOGY COMPANY
Ducom Instruments (USA) Evanston, IL
Ducom Instruments (India) Bangalore, KA
About Ducom Instruments
• Established in 1978 (over 30 years in tribology!)
• Largest range of tribometers in the world
• We can address almost all tribo-testing requirements
• We have over 100 standard tribometers
• We make over 40 customized tribometers every year!
• We manufacture in a space grade manufacturing facility – the same facility
produces parts for aircrafts and spaceships
• including parts that have landed on the moon!
• Ducom tribometers work in over 1200 labs worldwide
DUCOM – THE TRIBOLOGY COMPANY
TRIBOLOGY TESTING FOR BIO TRIBOLOGY
DUCOM – THE TRIBOLOGY COMPANY
Importance of Tribological Testing – Bio Tribology
DUCOM – THE TRIBOLOGY COMPANY
Bio relevant materials development, Oral Care Products and Technologies, Prosthetic Implants Developments being pursued most actively!
Bio Tribology
Material
Oral
Ocular
Prosthetic
Skin
Hair
What is being studied?
DUCOM – THE TRIBOLOGY COMPANY
• Development of bio compatible materials
– Bone fixators
– Bio compatible materials
– Bio compatible coatings
• Evaluation of dental properties
– Enamel
– Dental implants
– Brushing
– Charecterization of visco elastic behavior of saliva, etc…
• Contact lens evaluation
– Friction, lubricity
– Dryness
Bio Materials Research – High Importance!
DUCOM – THE TRIBOLOGY COMPANY
Human Welfare
US MGI challenges researchers, policymakers and business leaders to
quickly bring new materials to market. The process currently takes
20 years!
To help businesses discover, develop, deploy materials twice as fast we are
launching the Materials Genome Initiative -Barack Obama, President of the USA
CMU, June 2011
TRIBOLOGICAL STUDIES FOR BIO RELEVANT MATERIALS
DUCOM – THE TRIBOLOGY COMPANY
Most commonly used tribometers in bio-tribology
DUCOM – THE TRIBOLOGY COMPANY
Micro Pin on Disk
Linear Reciprocating
Tribometer Scratch Tester
FREQUENTLY USED BY RESEARCHERS TO STUDY MATERIALS, COATINGS AND LUBRICANTS
Ducom Pin on Disk Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Operational Principle Unidirectional sliding contact between a stationary ball/pin & a rotating disc Test parameters Normal load on ball/pin - disc Sliding speeds Contact Lubrication & environment conditions
Applications
Joints
Teeth
Contact lenses
Materials development
Inverted Pin on Disk – for submerged tests
DUCOM – THE TRIBOLOGY COMPANY
Fig. 1 - Inverted Pin on Disc arrangement for Tribo-analysis of Bio Materials in submerged conditions
Custom test set up (Originating from Pin on Disk Type Tests)
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Pin on Plate set up with multiple pins (long test duration)
Plate reciprocates
Each pin rotates about its own axis
Test Disk – Reciprocating Test pins – Rotating
Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Ducom Linear Reciprocating Tribometer set up with a variable stroke and variable frequency actuator with static direct loading mechanism via low friction cradles.
Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Basic explanation of Fretting Wear - for Linear Reciprocating Tribometers and Angular Oscillation Module enabled Micro PoDs
Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Explanation of the LRT test area, movements and variables.
Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Ducom LRT with fixed stroke and variable frequency capabilities. Sample holders for point, line and area contact. Image shows test debris forming during an un-lubricated test.
Frictional Force vs. Time – Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Graph displaying friction data which is recorded in both the forward stroke and reverse. Up to four results can be viewed in the same graph for comparative evaluation.
Frictional Force vs. Stroke Length – Ducom Linear Reciprocating Tribometer
This graph displays the measured frictional force vs. the measured stroke, thus giving the energy loss per cycle.
Note: Stroke measurement is an optional module on some Linear Tribometer models. Please consult Ducom for details.
Frictional Force vs. Cycles vs. Stroke – Ducom Linear Reciprocating Tribometer
DUCOM – THE TRIBOLOGY COMPANY
Graph displaying energy loss (Frictional Force vs. Stroke) plotted over the number of reciprocating cycles gives an excellent representation of the energy lost over the life of the test.
FOR MORE INFORMATION CONTACT DUCOM INSTRUMENTS
Ducom Instruments (India)
477/A, Peenya Industrial Area 4th Phase
Bangalore – 560 058 (INDIA)
Phone: +91 (80) 4080 5555 Fax: +91 (80) 4080 5510
Ducom Instruments (USA) 820 Davis Street, Suite 405 Evanston, IL - 60201 Phone: +1 (224) 544 5468
Web: www.ducom.com Email: [email protected]
DUCOM – THE TRIBOLOGY COMPANY
THANK YOU!
DUCOM – THE TRIBOLOGY COMPANY
