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Tribology, Lubrication & Coating Laboratory

TLCL was established over 6 years ago and has been funded by grants totaling over $750,000 by Platinum Research Organization and The Texas Higher Education Coordination Board. There have been several major initiatives within TLCL that include:

  • Development of High performance low phosphorous engine oils: The goal of the project has been to develop engine oils that are low in phosphorous and yet maintain their high anti wear performance. The outcome of the project would result in better fuel economy and lower emissions
  • Development of high performance universal greases: The goal of this project has been to develop low MoS2 greases that have improved low load wear performance while still retaining its extreme load carrying capacity
  • Development of conformal large area fluorinated hydrocarbon coatings: A new method for coating large areas with PTFE using a catalyst to enhance the deposition of PTFE at low temperatures was developed. Applications include: low friction coatings for anti-icing applications, anti-corrosion coatings, low friction and wear coatings for MEMS applications.
  • Results developed from ongoing research has resulted in five patent applications with the US Patent office and over 10 publications.

Personnel

  • Pranesh B. Aswath, Ph.D. Professor and Associate Chair
  • Ronald L. Elsenbaumer. Ph. D. Professor and VP of Research

Funding

  • Platinum Research Organization (TX)
  • Texas Higher Education Coordination Board

Post Doctoral Fellows:

  • Dr. Ramoun Mourhatch (Ph. D.)
  • Mr. Xin Chen (Ph. D.)
  • Consultant: Dr. Harold Shaub

Graduate students

  • Mr. BoHoon Kim (Ph. D. Candidate)
  • Mr. Mihir Kumar Patel (Ph. D. Candidate)
  • Mr. Eray Erkan (Ph. D. Candidate)
  • Mr. Nader Sawanesh (Ph. D. Candidate)
  • Ms. Hansika Parekh (M.S. Candidate)
  • Ms. Arunya Suresh (M.S. Candidate)
  • Ms. Beibei Wang (M.S. Candidate)
  • Mr. Tonye Adeogba (M.S. Candidate)

Alumni of Group

  • Dr. Zahedul Hug (Eaton Corp)
  • Dr. Gabi Nehme (Asst. Prof. Balamad University)
  • Dr. Ramoun Mourhatch (Post Doctoral Fellow -UTA)
  • Dr. Anuradha Somayaji
  • Mr. Sunit Munot (Independent Business)
  • Mr. Krupal Patel (Independent Business)
  • Ms. Kajal Parekh (Munzig)
  • Mr. Hiroshi Ito (Mitsubishi Heavy Industries)
  • Mr. Joonas Ponkala (Graduate Student - UTA)

Facilities and Equipment

Tribology Testing

  • Plint Ball on Cylinder Test Setup
  • Instrumented In house developed Ball on Cylnder tester for Lubrication Testing
  • Instrumented Ring on Block and Ring on Cylinder tester for Grease testing
  • Instrumented High Frequency Reciprocating Rig

Processing

  • High speed homogenized for colloidal processing
  • Low speed high torque mixer to create dispersions

Characterization

  • MAHR Perthometer stylus profilometer
  • Leco Microhardness tester
  • Perkin Elmer DSC-7, TGA-7 Thermal analysis system.
  • Steromciroscope with high resolution camera.

Selected Publications

  • Ramoun Mourhatch and Pranesh B. Aswath, “Tribological Behavior and Nature of Tribofilms Generated from Fluorinated ZDDP in Comparison to ZDDP under Extreme Pressure Conditions: Part 1: Structure and Chemistry of Tribofilms” In Review, Tribology International, 2010.
  • Ramoun Mourhatch and Pranesh B. Aswath “Tribological Behavior and Nature of Tribofilms Generated from Fluorinated ZDDP in Comparison to ZDDP under Extreme Pressure Conditions: Part 2: Morphology and Mechanical Properties of Tribofilms", In Review, Tribology International, 2010.
  • BoHoon Kim, Jiechiao Jiang and Pranesh B. Aswath, "Mechanism of Wear at Extreme Load and Boundary Conditions with Ashless Anti-wear Additives: Analysis of Wear Surfaces and Wear Debris" In Revision Wear, 2010.
  • BoHoon Kim, Ramoun Mourhatch and Pranesh B. Aswath “Properties of Tribofilms formed with Ashless Dithiophosphate and Zinc Dialkyl Dithiophosphate under Extreme Pressure Conditions” Wear, 268(3-4), pp. 579-591, 2010. .doi:10.1016/j.wear.2009.10.004
  • Gabi Nehme, Ramoun Mourhatch and Pranesh Aswath “Effect of Contact Load and Lubricant Volume on The Properties of Tribofilms formed under Boundary Lubrication in a Fully Formulated Oil”, Wear, 268(9-10), pp. 1129-1147, 2010. doi:10.1016/j.wear.2010.01.001
  • Arunya Suresh, Ramoun Mourhatch and Pranesh Aswath, “Effect of Test Parameters on the Four Ball Wear and Weld Performance of Greases with MoS2 and without MoS2 as EP Additives”, NLGI Spokesman, 73(1), 24-35, 2009.
  • Anuradha Somayaji and Pranesh Aswath “Role of Antioxidants on Oxidation Stability of Oils with ZDDP and F-ZDDP and Chemical Structure of Tribofilms with XANES” , Tribology Transactions, 52(4), pp. 511-525, 2009.
  • Kajal Parekh, Xin Chen and Pranesh Aswath, “Synthesis of Fluorinated ZDDP”, Tribology Letters, 41(2), pp. 141-153, 2009.
  • Ramoun Mourhatch and Pranesh Aswath "Nanoscale Properties of Tribofilms formed with Zinc Dialkyl Dithiophosphate (ZDDP) under Extreme Pressure Condition" Journal of Nanoscience and Nanotechnology, 9, pp. 2682-2691, 2009.
  • Anuradha Somayaji and Pranesh Aswath “Antiwear Behaviour of ZDDP and Flourinated ZDDP in the Presence of Alkylated Diphenyl Amine Antioxidants”, Tribology Transactions, 51(4), pp. 403-412, 2008.
  • Anuradha Somayaji, Ramoun Mourhatch and Pranesh Aswath “Nanoscale Properties of Tribofilms from ZDDP and Fluorinated ZDDP in the Presence and Absence of Antioxidants”, Journal of Nanoscience and Nanotechnology, 7, pp. 4378-4390, 2007.