弱界面层方向性对层状ZrB<sub>2</sub>-SiC/石墨陶瓷的影响

doi:10.11896/j.issn.1005-023X.2018.12.020

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (2247KB)
Export: BibTeX | EndNote (RIS)

Abstract Laminated ZrB₂-SiC/G graphite (ZrB₂-SiC/G) ceramics were fabricated by tap-casting, stacking and hot-pressing sintering. The effect of directivity of weak graphite layer on the laminated ZrB₂-SiC/G ceramics was investigated. The phase composition and morphology of the laminated ZrB₂-SiC/G ceramics was analyzed and observed by XRD and SEM, respectively. The results show that the flexural strength in the parallel direction of the laminated ZrB₂-SiC/G ceramics is (382±25) MPa, which is slightly lower than that of (429±30) MPa in the perpendicular direction. The fracture toughness in the parallel direction is (11.2±0.3) MPa·m^1/2, which increases by 75% compared with that in the perpendicular direction. The increase of fracture toughness of the laminated ZrB₂-SiC/G ceramics in the parallel direction is mainly attributed to the crack deflection, branching and delamination caused by graphite layer.

Key words： laminated structure ZrB₂-SiC ceramic weak graphite layer directivity mechanical properties

Published: 20 July 2018

CLC number:

TQ174.1

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YU Changxin
	WANG Fagang
	YIN Kaili
	JI Wenyi
	LIU Xinchao
	WEI Chuncheng

Cite this article:

YU Changxin,WANG Fagang,YIN Kaili, et al. Effect of the Directivity of Weak Interfacial Layer on the Laminated ZrB₂-SiC/Graphite Ceramics[J]. Materials Reports, 2018, 32(12): 2047-2050.

URL:

http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.12.020 OR http://www.mater-rep.com/EN/Y2018/V32/I12/2047

1 Guo Q L, Li J G, Shen Q, et al. Toughening of ZrB₂-SiC ceramics with the microstructure ZrB₂/Zr-Al-C fibrous monolith[J]. Scripta Materialia,2012,66(5):296.
2 Zou X, Fu Q G, Liu L, et al. ZrB₂-SiC coating to protect carbon/carbon composites against ablation[J]. Surface & Coatings Techno-logy,2013,226(11):17.
3 Yan Z Y, Ma Z, Liu L, et al. The ablation behavior of ZrB₂/Cu composite irradiated by high-intensity continuous laser[J]. Journal of the European Ceramic Society,2014,34(10):2203.
4 Li L, Li H J, Shen Q L, et al. Oxidation behavior and microstructure evolution of SiC-ZrB₂-ZrC coating for C/C composites at 1 673 K[J]. Ceramics International,2016,42(11):13041.
5 Wang H L, Fan B B, Feng L, et al. The fabrication and mechanical properties of SiC/ZrB₂ laminated ceramic composite prepared by spark plasma sintering[J]. Ceramics International,2012,38(6):5015.
6 Wang Lingling, Fang Guodong, Liang Jun. High temperature tensile damage behavior of ZrB₂-based ultra-high temperature ceramic composites[J]. Acta Materiae Compositae Sinica,2015,32(1):125(in Chinese).
王玲玲,方国东,梁军.ZrB₂基超高温陶瓷复合材料的高温拉伸损伤行为[J].复合材料学报,2015,32(1):125.
7 Hu P, Guo L W, Wang Z. Oxidation mechanism and resistance of ZrB₂-SiC composites[J]. Corrosion Science,2009,51(11):2724.
8 He J B, Wang Y G, Luo L, et al. Oxidation behavior of ZrB₂-SiC (Al/Y) ceramics at 1 700 ℃[J]. Journal of the European Ceramic Society,2016,36(15):3769.
9 Fu Jingying, Gao Dong, Zhang Yue, et al. Oxidation resistance performance of ZrB₂-SiC ceramic matrix composites[J]. Rare Metal Materials and Engineering,2009,38(2):898(in Chinese).
付景莹,高栋,张跃,等.ZrB₂-SiC陶瓷基复合材料抗氧化性能的研究[J].稀有金属材料与工程,2009,38(2):898.
10 Zuo Fengjuan, Cheng Laifei, Zhang Litong. Oxidation resistance of ZrB₂-SiC multilayer ceramics[J]. Journal of the Chinese Ceramic Society,2012,40(8):1174(in Chinese).
左凤娟,成来飞,张立同.ZrB₂-SiC多层陶瓷的抗氧化性[J].硅酸盐学报,2012,40(8):1174.
11 Bueno S, Baudin C. Layered materials with high strength and flaw tolerance based on alumina and aluminium titanate[J]. Journal of the European Ceramic Society,2007,27(2):1455.
12 Clegg W J, Kendall K, Alford N M N, et al. A simple way to make tough ceramics[J]. Nature,1990,347(6292):455.
13 Li Y Y, Li Q G, Wang Z. Microstructures and mechanical properties of lamina-ted ZrC-SiC composites with different SiC powders[J]. Ceramics International,2015,41(10):15255.
14 Xiang L Y, Cheng L F, Hou Y, et al. Fabrication and mechanical properties of laminated HfC-SiC/BN ceramics[J]. Journal of the European Ceramic Society,2014,34(15):3635.
15 Zuo F J, Cheng L F, Xiang L Y, et al. Ablative property of lamina-ted ZrB₂-SiC ceramics under oxyacetylene torch[J]. Ceramics International,2013,39(4):4627.
16 Wei C C, Zhang X H, Hu P, et al. Microstructure and mechanical properties of laminated ZrB₂-SiC ceramics with ZrO₂ interface layers[J]. International Journal of Refractory Metals and Hard Materials,2012,30(1):173.
17 Lv Z H, Jiang D L, Zhang J X, et al. ZrB₂-SiC laminated ceramic composites[J]. Journal of the European Ceramic Society,2012,32(7):1435.
18 Wei C C, Zhang X H, Li S. Laminated ZrB₂-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness[J]. Ceramics International,2014,40(3):5001.
19 Wei Chuncheng, Ye Changshou, Liu Xiaoyan. Mechanical properties and microstructure of highly oriented graphite matrix composites[J]. Journal of Synthetic Crystals,2015,44(8):2298(in Chinese).
魏春城,叶长收,刘晓燕.高取向度石墨基复合材料力学性能及微观结构研究[J].人工晶体学报,2015,44(8):2298.
20 Zhang X, Wang Z, Sun X, et al. Effect of graphite flake on the mechanical properties of hot pressed ZrB₂-SiC ceramics[J]. Materials Letters,2008,62(28):4360.
21 Wu H T, Zhang W G. Fabrication and properties of ZrB₂-SiC-BN machinable ceramics[J]. Journal of the European Ceramic Society,2010,30(4):1035.
22 Zou J, Zhang G J, Hu C F, et al. Strong ZrB₂-SiC-WC ceramics at 1 600 ℃[J]. Journal of the American Ceramic Society,2012,95(3):874.
23 Xu Y D, Cheng L F, Zhang L T. Carbon/silicon carbide composites prepared by chemical vapor infiltration combined with silicon melt infiltration[J]. Carbon,1999,37(8):1179.