Abstract

Short-carbon-fibers (Csf) reinforced Ti3SiC2 matrix composites (Csf/Ti3SiC2, the Csf content was 0 vol%, 2 vol%, 5 vol%, and 10 vol%) were fabricated by spark plasma sintering (SPS) using Ti3SiC2 powders and Csf as starting materials at 1300 °C. The effects of Csf addition on the phase compositions, microstructures, and mechanical properties (including hardness, flexural strength (σf), and KIC) of Csf/Ti3SiC2 composites were investigated. The Csf, with bi-layered transition layers, i.e., TiC and SiC layers, were homogeneously distributed in the as-prepared Csf/Ti3SiC2 composites. With the increase of Csf content, the KIC of Csf/Ti3SiC2 composites increased, but the σf decreased, and the Vickers hardness decreased initially and then increased steadily when the Csf content was higher than 2 vol%. These changed performances (hardness, σf, and KIC) could be attributed to the introduction of Csf and the formation of stronger interfacial phases.

Details

Title
Microstructure and mechanical properties of short-carbon-fiber/Ti3SiC2 composites
Author
He Guangqi 1 ; Guo Rongxiu 2 ; Li Meishuan 3 ; Yang, Yang 4 ; Wang Linshan 5 ; Qian Yuhai 3 ; Zuo, Jun 3 ; Xu, Jingjun 3 ; Liu, Changsheng 2 

 Northeastern University, School of Materials Science and Engineering, Shenyang, China (GRID:grid.412252.2) (ISNI:0000 0004 0368 6968); Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Shenyang, China (GRID:grid.9227.e) (ISNI:0000000119573309) 
 Northeastern University, School of Materials Science and Engineering, Shenyang, China (GRID:grid.412252.2) (ISNI:0000 0004 0368 6968) 
 Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Shenyang, China (GRID:grid.9227.e) (ISNI:0000000119573309) 
 Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Shenyang, China (GRID:grid.9227.e) (ISNI:0000000119573309); University of Science and Technology of China, School of Materials Science and Engineering, Shenyang, China (GRID:grid.59053.3a) (ISNI:0000000121679639) 
 Northeastern University, College of Science, Shenyang, China (GRID:grid.412252.2) (ISNI:0000 0004 0368 6968) 
Pages
716-725
Publication year
2020
Publication date
Dec 2020
Publisher
Tsinghua University Press
ISSN
22264108
e-ISSN
22278508
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2473396464
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.