Contact Information:
email: jeung1@engineering.upenn.edu
office: 112 Towne
Education:
Bachelor of Mechanical Engineering, Tokyo University of Science, 2024
- Thesis: ”Effect of Phosphorus and Sulfur Based Additives on Wear and Micro-Pitting Under Rolling and Sliding Conditions”
Research Interests:
Tribology; tribochemistry; tribofilm formation; mechanochemistry;
Presentations:
- Y. Jeung, R. Ohashi, K. Nakayama, K. Sato, S. Sasaki, “Effect of Phosphorus and Sulfur based Additives on Wear and Micro-pitting under rolling and sliding conditions.” STLE 2023 Tribology Frontiers & Electric Vehicles Conference: Oral Presentation, Cleveland, USA (2023)
- Y. Jeung, K. Sato, S. Sasaki, “Effect of Phosphorus and Sulfur Based Additives on Wear and Micro-Pitting Under Rolling and Sliding Conditions.” 63th Presentation competition of graduation research on Kanto Students conference: Oral Presentation, Tokyo, Japan (2024)
- Y. Jeung, K. Yoshioka, K. Sato, S. Sasaki, “Combination Effects of Phosphate and Sulfur Additives on Anti-Wear/Anti-Pitting Properties and Tribofilm Formation in Rolling-Sliding Contacts.” 78th STLE Annual Meeting & Exhibition: Oral Presentation, Minneapolis, USA (2024).
- Y. Jeung, R. Ohashi, K. Nakayama, K. Sato, S. Sasaki, “Effect of tribofilm derived from phosphorus/sulfur additives on pitting resistance of bearing steel during rolling friction.” Japanese Tribology conference Spring 2024 Tokyo: Oral Presentation, Tokyo, Japan (2024)
- Y. Jeung, R. Ohashi, K. Nakayama, K. Sato, S. Sasaki, “EFFECTS OF TRIBOFILM DERIVED FROM SULFUR/ PHOSPHORUS BASED ADDITIVES ON PITTING /WEAR RESISTANCE OF BEARING STEEL DURING ROLLING FRICTION.”, 49th Leeds-Lyon Symposium on Tribology: Oral Presentation, Lyon, France (2024)
- Y. Jeung, K. Sato, S. Sasaki, “Effects of Tribofilm Properties and Film Structure on Wear and Fatigue Resistance of P and S Additives under Rolling-Sliding Contact Conditions.”, The 2024 Annual Meeting of the Japan Society of Mechanical Engineers, Matsuyama, Japan (2024)
- Yunah Jeung, Kaisei Sato, Pranjal Nautiyal, Cangyu Qu, James P. Ewen, Robert W. Carpick, “A Method for Accelerating Nanoscale In Situ Tribofilm Growth.”, Gordon Research Seminar & Conference on Tribology, Bates College, Maine, USA (2025)