@article{YU2021, 
author = {Lei YU and Hui LIU and Yaohui FU and Weijiang HU and Zhefei WANG and Quan LIU and Bo WEI and Jian YANG and Tai QIU},
title = {Design and preparation of an ultra-high temperature ceramic by in-situ introduction of Zr2[Al(Si)]4C5 into ZrB2-SiC: Investigation on the mechanical properties and oxidation behavior},
year = {2021},
journal = {Journal of Advanced Ceramics},
volume = {10},
number = {5},
pages = {1082-1094},
keywords = {ZrB2-matrix composites, ultra-high temperature ceramics (UHTCs), mechanical properties, strengthening and toughening mechanism, oxidation behavior},
url = {https://www.sciopen.com/article/10.1007/s40145-021-0493-y},
doi = {10.1007/s40145-021-0493-y},
abstract = {Novel ZrB2-matrix composites were designed and prepared by in-situ introducing SiC and Zr2[Al(Si)]4C5 simultaneously for the first time. The obtained composites were dense and showed good mechanical properties, especially the strength and toughness, 706 MPa and 7.33 MPa·m1/2, respectively, coupled with high hardness of 21.3 GPa, and stiffness of 452 GPa. SiC and Zr2[Al(Si)]4C5 constituted a reinforcing system with synergistic effects including grain refinement, grain pull-out as well as crack branching, bridging, and deflection. Besides, the oxidation results of the composites showed that the oxidation kinetics followed the parabolic law at 1600 ℃, and the oxidation rate constants increased with the increase of Zr2[Al(Si)]4C5 content. The formation and evolution model of the oxidation structure was also investigated, and the oxide scale of the composite exhibited a three-layer structure.}
}