|
|||||
|
|
Modelling and Characterisation of Residual Stress of SiC-Ti3C2Tx MXene Composites Sintered via Spark Plasma Sintering Method |
|
| Authors: | Mateusz Petrus Jaros&#x;aw Wo niak Marek Kostecki Tomasz Cygan Agnieszka Jastrz&#x;bska Anita Rozmys&#x;owska-Wojciechowska Bogus&#x;awa Adamczyk-Cie lak Dorota Moszczy&#x;ska Maksymilian Sienkiewicz Piotr Marek Arkadiusz P Gertych Mariusz Zdrojek Andrzej Olszyna |
| Institution: | 1.Faculty of Material Science and Engineering, Warsaw University of Technology, Woloska 141 St., 02-507 Warsaw, Poland; (J.W.); (M.K.); (T.C.); (A.J.); (A.R.-W.); (B.A.-C.); (D.M.); (A.O.);2.Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Nowowiejska 24 St., 00-665 Warsaw, Poland; (M.S.); (P.M.);3.Faculty of Physics, Warsaw University of Technology, Koszykowa 75 St., 00-662 Warsaw, Poland; (A.P.G.); (M.Z.) |
| Abstract: | This article presents an attempt to determine the effect of the MXene phase addition and its decomposition during sintering with the use of the spark plasma sintering method on mechanical properties and residual stress of silicon carbide based composites. For this purpose, the unreinforced silicon carbide sinter and the silicon carbide composite with the addition of 2 wt.% of Ti3C2Tx were tested. The results showed a significant increase of fracture toughness and hardness for composite, respectively 36% and 13%. The numerical study involving this novel method of modelling shows the presence of a complex state of stress in the material, which is related to the anisotropic properties of graphitic carbon structures formed during sintering. An attempt to determine the actual values of residual stress in the tested materials using Raman spectroscopy was also made. These tests showed a good correlation with the constructed numerical model and confirmed the presence of a complex state of residual stress. |
| Keywords: | ceramic matrix composites (CMC) Ti3C2 MXene mechanical properties residual stress FEM numerical study Raman spectroscopy |