About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Engineering Ceramics: Microstructure-Property-Performance Relations and Applications
|
Presentation Title |
Tribological Behavior of Spark Plasma Sintered Ti3SiC2 MAX Phase Composites |
Author(s) |
Shipra Bajpai, Maria Cinta Lorenzo Martin, Oyelayo Ajayi, Dileep Singh |
On-Site Speaker (Planned) |
Shipra Bajpai |
Abstract Scope |
Ti3SiC2 MAX phases are the layered ternary compounds with M as a transition metal, A as an A-group element, and X as Carbon, possessing low density (4.5 g/cm3), good mechanical, and lubricating properties. The present work focuses on possibility of applying MAX phases for bearing applications. Reactive sintering of Ti3SiC2 MAX phase is carried out using Spark plasma sintering at 1400 °C, 40 MPa, for 15 min. Microstructural and phase analysis confirmed the formation of dense composites (~99%) having MAX phase Ti3SiC2 (~91%) and TiC (~9%). Tribological evaluation of Ti3SiC2 against 52100 steel ball sliding at 1N and 5N showed constant friction (~0.47) but different wear mechanism with limited material transfer at low load (1N) and extensive material transfer, grain pullout and substrate cracking at higher load (5N). Additional tribological studies of Ti3SiC2 MAX phase are also planned to understand elevated temperature wear mechanism. |