EFFECT OF CRACK BRIDGING ON THE TOUGHENING OF CERAMIC/GRAPHENE COMPOSITES

被引：33
作者：
Bobylev, S., V [1 ,2 ]
Sheinerman, A. G. [1 ,2 ,3 ]
机构：
[1] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
[2] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia
[3] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
来源：
REVIEWS ON ADVANCED MATERIALS SCIENCE | 2018年 / 57卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
ENHANCED MECHANICAL-PROPERTIES; GRAPHENE REINFORCED METAL; ZIRCONIA COMPOSITES; CERAMICS; MICROSTRUCTURE; NANOCOMPOSITES; NANOPLATELETS; OXIDE; TOUGHNESS; STRENGTH;
D O I：
10.1515/rams-2018-0047
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A model is proposed describing the effect of crack bridging on the fracture toughness of ceramic/graphene composites. The dependences of the fracture toughness on the graphene content and the sizes of the graphene platelets are calculated in the exemplary case of yttria stabilized zirconia (YSZ)/graphene composites. The calculations predict that if crack bridging prevails over crack deflection during crack growth, the maximum toughening can be achieved in the case of long graphene platelets provided that the latter do not rupture and adhere well to the matrix. The model shows good correlation with the experimental data at low graphene concentrations.
引用
收藏
页码：54 / 62
页数：9
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