Toughened and strengthened silicon carbide ceramics by adding graphene-based fillers

被引：95

作者：

Belmonte, Manuel ^{[1
]}

Nistal, Andres ^{[1
]}

Boutbien, Pierre ^{[1
]}

Roman-Manso, Benito ^{[1
]}

Osendi, Maria I. ^{[1
]}

Miranzo, Pilar ^{[1
]}

机构：

[1] ICV CSIC, Inst Ceram & Glass, Madrid 28049, Spain

来源：

SCRIPTA MATERIALIA | 2016年 / 113卷

关键词：

Graphene; Ceramic matrix composites (CMC); Mechanical properties; Toughness; Fracture; MECHANICAL-PROPERTIES; IN-SITU; COMPOSITES; TOUGHNESS;

D O I：

10.1016/j.scriptamat.2015.10.023

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Graphene nanoplatelets and reduced graphene oxide (rGO) were selected as fillers to develop reinforced silicon carbide (SiC)/graphene composites. The mechanical properties of the materials were investigated as a function of the type of graphene source and graphene content. Composites containing just 5 vol.% of rGOs exhibited an outstanding mechanical performance, increasing both the fracture toughness by similar to 162%, with a maximum value of 8.3 MPa . m(1/2), and the strength by similar to 60% (600 MPa) when compared to monolithic SiC. The preferential alignment of the graphene fillers, their dimensions, and the graphene-SiC mechanical interlock are key factors to promote crack shielding mechanisms. (C) 2015 Elsevier Ltd. All rights reserved.

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页码：127 / 130

页数：4

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