Effect of boron doping on fracture behavior of carbon fiber reinforced lithium aluminosilicate glass ceramics matrix composites

被引：23

作者：

Xia, Long ^{[1
]}

Zhang, Tao ^{[1
]}

Chai, Zhenfei ^{[1
]}

Hu, Xueting ^{[2
]}

Jin, Feng ^{[1
]}

Wen, Guangwu ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Weihai 264209, Peoples R China

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Fracture toughness; Fiber-reinforced composite; Carbon fiber; Electron microscopy; Mechanism of interfacial formation; HIGH-PERFORMANCE APPLICATIONS; MECHANICAL-PROPERTIES; THERMAL-PROPERTIES; SICF/SIC COMPOSITES; MICROSTRUCTURE; MANAGEMENT; EXPANSION; THICKNESS; GRAPHENE;

D O I：

10.1016/j.jeurceramsoc.2016.05.015

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：

Boron doped carbon fibers reinforced lithium aluminosilicate matrix composites (C-f/LAS) were prepared by slurry infiltration combining with hot pressing procedure. The doping of boron significantly enhances the fracture toughness and fracture work of the C-f/LAS composites, which could reach the highest fracture toughness of 25.0 +/- 0.4 MPa m(1/2) and the work of fracture of 24.5 +/- 2.8 kJ/m(2), respectively. The work of fracture of boron doped C-f/LAS composites is 2.2 times of that of the boron free C-f/LAS composites. The fracture mode of C-f/LAS composites changed from ductile fracture to brittleness fracture with increasing the boron content from 0 to 4 wt%. The connection of the fracture behavior and the interfacial microstructure was examined to establish a direct relationship among interfacial microstructure, interfacial chemistry and fracture behavior of the studied composites. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：3513 / 3522

页数：10

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