Anisotropic elastic moduli and internal friction of graphene nanoplatelets/silicon nitride composites

被引：40

作者：

Seiner, Hanus ^{[1
]}

Sedlak, Petr ^{[1
]}

Koller, Martin ^{[2
]}

Landa, Michal ^{[1
]}

Ramirez, Cristina ^{[3
]}

Isabel Osendi, Maria ^{[3
]}

Belmonte, Manuel ^{[3
]}

机构：

[1] Acad Sci Czech Republ, Inst Thermomech, Prague 18200, Czech Republic

[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague 12000, Czech Republic

[3] CSIC, Inst Ceram & Glass, ICV, E-28049 Madrid, Spain

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2013年 / 75卷

关键词：

Nanocomposites; Ceramic-matrix composites (CMCs); Anisotropy; Elastic properties; Ultrasonics;

D O I：

10.1016/j.compscitech.2012.12.003

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Elasticity and internal friction of graphene nanoplatelets (3 wt.%)/Si3N4 composite is analyzed by ultrasonic methods. It is shown that the composite exhibits a degenerate (elliptic) form of transversal isotropy with the graphene nanoplatelets acting effectively as spheroidal voids and inducing significant softening in all directions. The shear internal friction is strongly anisotropic with the maximal value corresponding to the volume-preserving, 'breathing' vibrations of the nanoplatelets. Possible relations between the observed behaviors and the micromorphology of the composite are discussed. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：93 / 97

页数：5

共 23 条

[1]

[Anonymous], 1970, Crystal Acoustics

[2] Vibrations of carbon nanotubes and their composites: A review [J].

Gibson, Ronald F. ;

Ayorinde, Emmanuel O. ;

Wen, Yuan-Feng .

COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (01) :1-28

[3] Solids with cracks and non-spherical pores: proper parameters of defect density and effective elastic properties [J].

Kachanov, M .

INTERNATIONAL JOURNAL OF FRACTURE, 1999, 97 (1-4) :1-32

[4]

Kachanov M., 1995, INT J FRACTURE, V74, pR33

[5] 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

[6] Modal resonant ultrasound spectroscopy for ferroelastics [J].

Landa, Michal ;

Sedlak, Petr ;

Seiner, Hanus ;

Heller, Ludek ;

Bicanova, Lucie ;

Sittner, Petr ;

Novak, Vaclav .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2009, 96 (03) :557-567

[7] Resonant ultrasound spectroscopy [J].

Leisure, RG ;

Willis, FA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (28) :6001-6029

[8] Shear Modulus of Monolayer Graphene Prepared by Chemical Vapor Deposition [J].

Liu, Xiao ;

Metcalf, Thomas H. ;

Robinson, Jeremy T. ;

Houston, Brian H. ;

Scarpa, Fabrizio .

NANO LETTERS, 2012, 12 (02) :1013-1017

[9] Low temperature elastic properties of chemically reduced and CVD-grown graphene thin films [J].

Liu, Xiao ;

Robinson, J. T. ;

Wei, Zhongqing ;

Sheehan, P. E. ;

Houston, B. H. ;

Snow, E. S. .

[10] EFFECTIVE ELASTIC PROPERTIES OF AN ANISOTROPIC MATERIAL WITH ARBITRARILY ORIENTED INTERACTING CRACKS [J].

MAUGE, C ;

KACHANOV, M .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1994, 42 (04) :561-584

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