Fabrication and properties of in situ reduced graphene oxide-toughened zirconia composite ceramics

被引：42

作者：

Zeng, Zhaoyubo ^{[1
]}

Liu, Yunzhong ^{[1
]}

Chen, Weiping ^{[1
]}

Li, Xiaoqiang ^{[1
]}

Zheng, Qifan ^{[1
]}

Li, Kaili ^{[1
]}

Guo, Ruiran ^{[1
]}

机构：

[1] South China Univ Technol, Natl Engn Res Ctr Near Net Shape Forming Metall M, Guangzhou, Guangdong, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2018年 / 101卷 / 08期

关键词：

composites; graphene oxide; spark plasma sintering; toughening and toughness; zirconia; CARBON; FILMS;

D O I：

10.1111/jace.15483

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Graphene oxide and zirconia powders were mixed using a colloidal coating route. In situ reduced graphene oxide-toughened zirconia ceramics were prepared by spark plasma sintering. Their microstructure, mechanical properties, and toughening mechanisms were investigated. The results show that graphene oxide can be easily reduced in situ during sintering and that it disperses homogeneously within the zirconia substrate. Compared with the toughness of 3 mol.% yttria-stabilized zirconia, the fracture toughness of in situ reduced graphene oxide-toughened zirconia increased by up to 175% (from similar to 6.07 to similar to 10.64 MPam(1/2)) at 0.09 wt.% graphene oxide with a small increase in hardness. The improvement is more significant than that of prereduced graphene oxide-toughened cases, and it is associated with the formation of a C-O-Zr bond at the interface in addition to conventional toughening mechanisms.

引用

页码：3498 / 3507

页数：10

共 34 条

[1] Anisotropic mechanical and functional properties of graphene-based alumina matrix nanocomposites [J].

Celik, Y. ;

Celik, A. ;

Flahaut, E. ;

Suvaci, E. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (08) :2075-2086

[2] Harnessing the chemistry of graphene oxide [J].

Dreyer, Daniel R. ;

Todd, Alexander D. ;

Bielawski, Christopher W. .

CHEMICAL SOCIETY REVIEWS, 2014, 43 (15) :5288-5301

[3] TiO2/graphene nanocomposites from the direct reduction of graphene oxide by metal evaporation [J].

Favaro, Marco ;

Agnoli, Stefano ;

Di Valentin, Cristiana ;

Mattevi, Cecilia ;

Cattelan, Mattia ;

Artiglia, Luca ;

Magnano, Elena ;

Bondino, Federica ;

Nappini, Silvia ;

Granozzi, Gaetano .

CARBON, 2014, 68 :319-329

[4]

Ferrari A.C., 2006, PHYS REV LETT, V97, P13831

[5] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[6] Cold sintering process for ZrO2-based ceramics: significantly enhanced densification evolution in yttria-doped ZrO2 [J].

Guo, Hanzheng ;

Guo, Jing ;

Baker, Amanda ;

Randall, Clive A. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2017, 100 (02) :491-495

[7]

Huh SH, 2011, PHYSICS AND APPLICATIONS OF GRAPHENE - EXPERIMENTS, P73

[8] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[9] Oxygen vacancies contributing to intragranular electrical conduction of yttria-stabilized zirconia (YSZ) ceramics [J].

Kurumada, M ;

Hara, H ;

Iguchi, E .

ACTA MATERIALIA, 2005, 53 (18) :4839-4846

[10] Fracture toughness and toughening mechanisms in graphene platelet reinforced Si3N4 composites [J].

Kvetkova, Lenka ;

Duszova, Annamaria ;

Hvizdos, Pavol ;

Dusza, Jan ;

Kun, Peter ;

Balazsi, Csaba .

SCRIPTA MATERIALIA, 2012, 66 (10) :793-796

← 1 2 3 4 →