Microstructure and fracture toughness of graphene nanosheets/alumina composites

Ya Fei Chen; Jian Qiang Bi; Chong Long Yin; Guang Lei You

doi:10.1016/j.ceramint.2014.05.107

Microstructure and fracture toughness of graphene nanosheets/alumina composites

Ya Fei Chen
, Jian Qiang Bi^*
, Chong Long Yin
, Guang Lei You

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

92 Scopus citations

Abstract

Graphene nanosheets (GNS)/alumina composites were fabricated by hot pressing. The microstructure and mechanical properties are apparently influenced by the addition of GNS. In particular, the fracture toughness of the composites improves notably. The maximum value is 6.6 MPa m^1/2 for the 0.2 wt% GNS/alumina composite, which is about 43.5% higher than that of the monolithic. The main toughening mechanisms are crack deflection, crack bridging, crack branching and the pullout of GNS.

Original language	English
Pages (from-to)	13883-13889
Number of pages	7
Journal	Ceramics International
Volume	40
Issue number	9 PART A
DOIs	https://doi.org/10.1016/j.ceramint.2014.05.107
State	Published - 2014
Externally published	Yes

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (No. 51272132 ) and Independent Innovation Foundation of Shandong University ( 2012TS213 ).

Keywords

Alumina
B. Composites
Graphene nanosheets
Toughening

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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Cite this

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title = "Microstructure and fracture toughness of graphene nanosheets/alumina composites",

abstract = "Graphene nanosheets (GNS)/alumina composites were fabricated by hot pressing. The microstructure and mechanical properties are apparently influenced by the addition of GNS. In particular, the fracture toughness of the composites improves notably. The maximum value is 6.6 MPa m1/2 for the 0.2 wt\% GNS/alumina composite, which is about 43.5\% higher than that of the monolithic. The main toughening mechanisms are crack deflection, crack bridging, crack branching and the pullout of GNS.",

keywords = "Alumina, B. Composites, Graphene nanosheets, Toughening",

author = "Chen, \{Ya Fei\} and Bi, \{Jian Qiang\} and Yin, \{Chong Long\} and You, \{Guang Lei\}",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China (No. 51272132 ) and Independent Innovation Foundation of Shandong University ( 2012TS213 ).",

year = "2014",

doi = "10.1016/j.ceramint.2014.05.107",

language = "English",

volume = "40",

pages = "13883--13889",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd.",

number = "9 PART A",

}

TY - JOUR

T1 - Microstructure and fracture toughness of graphene nanosheets/alumina composites

AU - Chen, Ya Fei

AU - Bi, Jian Qiang

AU - Yin, Chong Long

AU - You, Guang Lei

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China (No. 51272132 ) and Independent Innovation Foundation of Shandong University ( 2012TS213 ).

PY - 2014

Y1 - 2014

N2 - Graphene nanosheets (GNS)/alumina composites were fabricated by hot pressing. The microstructure and mechanical properties are apparently influenced by the addition of GNS. In particular, the fracture toughness of the composites improves notably. The maximum value is 6.6 MPa m1/2 for the 0.2 wt% GNS/alumina composite, which is about 43.5% higher than that of the monolithic. The main toughening mechanisms are crack deflection, crack bridging, crack branching and the pullout of GNS.

AB - Graphene nanosheets (GNS)/alumina composites were fabricated by hot pressing. The microstructure and mechanical properties are apparently influenced by the addition of GNS. In particular, the fracture toughness of the composites improves notably. The maximum value is 6.6 MPa m1/2 for the 0.2 wt% GNS/alumina composite, which is about 43.5% higher than that of the monolithic. The main toughening mechanisms are crack deflection, crack bridging, crack branching and the pullout of GNS.

KW - Alumina

KW - B. Composites

KW - Graphene nanosheets

KW - Toughening

UR - https://www.scopus.com/pages/publications/84905908240

U2 - 10.1016/j.ceramint.2014.05.107

DO - 10.1016/j.ceramint.2014.05.107

M3 - Article

AN - SCOPUS:84905908240

SN - 0272-8842

VL - 40

SP - 13883

EP - 13889

JO - Ceramics International

JF - Ceramics International

IS - 9 PART A

ER -

Microstructure and fracture toughness of graphene nanosheets/alumina composites

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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