热压烧结温度对石墨烯/氧化铝复合材料力学性能的影响

doi:10.11896/cldb.19120144

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Abstract The research on the preparation technology and mechanical properties of graphene-reinforced alumina matrix composites has attracted extensive attention. In our work, the graphene-reinforced alumina matrix composites were successfully prepared by hot pressing sintering technology at sintering pressure of 40 MPa. The influence of hot-pressing sintering temperature on the structure and mechanical properties of graphene-reinforced alumina matrix composites was systematically studied. The results show that hot-pressing sintering temperature has little effect on the crystal phase of graphene-reinforced alumina matrix composites, which are all Al₂O₃ (corundum) crystal phase. With increasing of sintering temperature, the bending strength and Vickers hardness of the composite increase and then decrease obviously, but the effect of sintering temperature on fracture toughness is very small. When the sintering temperature reaches to 1 550 ℃, the composite has the best properties, bending strength, fracture toughness, Vickers hardness of graphene/alumina matrix composites were 673.84 MPa, 20.4 GPa and 5.98 MPa·m^1/2, respectively. Furthermore, the microstructure of graphene reinforced alumina matrix composite hot pressed at different temperature indicates that the change of grain size result in the change of mechanical properties of composites.

Key words： alumina matrix composites graphene hot-pressing sintering temperature microstructures mechanical properties

Published: 24 December 2020

CLC number:

TB383

Fund:This work was financially supported by the National Natural Science Foundation of China (11972100), Chongqing Special Project of Technology Innovation and Application Development (cstc2019jscx-fxydX0075), Funding Scheme for Training Outstanding and Innovative Talents of Chongqing University of Science and Technology (201604).

About author:: Bi Jia is the professor at the Chongqing University of Science and Technology. Her research mainly focuses on the research and development of advanced ceramic materials and devices such as super-hard, super-strength, wear-resistant, anti-corrosion, environmental protection and metallurgical testing technology and equipment. She undertook one "863" project of the Ministry of Science and Technology, one sub-project of the support plan and one platform fund project; published 33 papers, 25 national patents; got provincial and ministerial scientific and technological achievement awards. She also has hosted achievement transformation projects.

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	Articles by authors
	JIA Bi
	LI Xiaobo
	PAN Fusheng
	WANG Ruzhuan
	YUAN Yujiao
	LUO Chunxi
	ZHU Zhao
	LIU Hanlei

Cite this article:

JIA Bi,LI Xiaobo,PAN Fusheng, et al. The Effect of Hot-pressing Sintering Temperature on Graphene-reinforced Alumina Matrix Composites[J]. Materials Reports, 2020, 34(24): 24001-24004.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.19120144 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24001

1 Becher P F, Wei G C.Journal of the American Ceramic Society, 1984, 67, 267.
2 Wei G C, Becher P F.American Ceramic Society Bulletin, 1985, 64, 298.
3 Yin Z B, Huang C Z, Zou B, et al.Ceramics International, 2013, 39, 8877.
4 Yazdani B, Xia Y, Ahmad I, et al.Journal of the European Ceramic So-ciety, 2015, 35, 179.
5 Changgu L, Xiaoding W, Jeffrey W K, et al.Science, 2008, 321(5887), 385.
6 Li S B, Wang Z F, Jiang H M, et al.Chemical Communications, 2016, 52(73), 13.
7 Zhu T, Li S B, Bin R, et al.Journal of Materials Science, 2019, 54(13), 9632.
8 Liu Z L, Zhu J, Shi J L, et al.Ceramics International, 2017, 43(14), 11421.
9 He T, Li J L, Wang L J, et al.Materials Transactions, 2009, 50, 749.
10 Porwal H, Tatarko P, Grasso S, et al. Carbon, 2013, 64, 359.
11 Çelik Y, Çelik A, Flahaut E, et al.Journal of the European Ceramic So-ciety, 2016, 36, 2075.
12 Yazdani B, Porwal H, Xia Y D, et al.Ceramics International, 2015, 41, 9813.
13 Cui E Z, Zhao J, Wang X C, et al.Ceramics International, 2018, 44, 13538.
14 Wang L, Bi J Q, Wang W L, et al.Ceramics International, 2019, 45, 8081.
15 Jaroslaw T W, Maria T, Grzegorz C, et al.Ceramics International, 2016, 42, 8597.
16 Fan Y, Wang L, Li J, et al.Carbon, 2010, 48, 1743.
17 Fan Y C, Wang L L, Liu J L, et al. Carbon, 2010, 48(6), 1743.
18 CentenoA, Rocha V G, Alonso B, et al. Journal of the European Ceramic Society, 2013, 33, 3201.
19 Frank F. Spectrochimica Acta Part B Atomic Spectroscopy, 2000, 55(7), 1051.
20 Hansen N.Scripta Materialia, 2004, 51, 801.
21 Kato M. Materials Transactions, 2014, 55, 19.
22 Sumin Z, William G F, Gregory E H. Journal of the European Ceramic Society, 2007, 27(4), 2077.
23 Watts J, Hilmas G E, Fahrenholtz W G. Journal of the American Ceramic Society, 2011, 94, 4410.
24 Griffith A A.Philosophical Transactions of the Royal Society of London, 1921, 221(2), 163.
25 Alireza R, William G F, Gregory E. Journal of Materials Science, 2007, 42(8), 2735.