Open AccessEffect of Si element on the interfacial reaction of Ti3SiC2 reinforced Al matrix aomposites
Author(s) -
Jianbo Zhang,
Yiming Jin,
Xucun Man,
Hao Zeng,
Jinping Liu,
Xuehui Zhang
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abde4e
Subject(s) - materials science , analytical chemistry (journal) , chemistry , chromatography
The interfacial reaction behavior of Ti 3 SiC 2 /Al andTi 3 SiC 2 /Al-10si matrix composites at high temperature was studied by XRD and SEM. The results showed that the reaction between Ti 3 SiC 2 and Al matrix is Ti 3 SiC 2 + Al → TiCx + Si + Al 3 Ti . Ti 3 SiC 2 particles in the Ti 3 SiC 2 /Al composite were almost completely reacted after 700 °C/1 h treatment, whilea large amount of Ti 3 SiC 2 particles still existed in the Ti 3 SiC 2 /Al-10Si composite under the same treatment condition. In addition, the friction coefficient and wear amount of Ti 3 SiC 2 /Al composite were 0.54 and 0.167 g, respectively, and that in Ti 3 SiC 2 /Al-10Simatrix composites were 0.29 and 0.019 g. According to the critical condition of ΔG = 0, it is calculated that when the activity of Si is greater than 0.57, the interfacial reaction between Ti 3 SiC 2 and Al matrix is inhibited.