Improvement of SiC-Si/MAS Interface in the Joints via In Situ Synthesizing SiC Nanowires

被引：11

作者：

Chu, Yanhui ^{[1
]}

Li, Hejun ^{[1
]}

Peng, Han ^{[1
]}

Qi, Lehua ^{[2
]}

Luo, Huijuan ^{[1
]}

Xu, Zhanwei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Carbon Carbon Composites Res Ctr, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Sch Mechatron Engn, Xian 710072, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2013年 / 96卷 / 12期

基金：

中国国家自然科学基金;

关键词：

BONDING CARBON/CARBON COMPOSITES; C/C COMPOSITES; MECHANICAL-PROPERTIES; OXIDATION PROTECTION; CARBON; ADHESIVE; TEMPERATURE; NANOTUBES; STRENGTH; GLASS;

D O I：

10.1111/jace.12612

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：

Improving the SiC-Si/MAS interface is essential for enhancing the SiC-Si/MAS joint strength. In this work, well-dispersed SiC nanowires (NWs) were in situ synthesized at the SiC-Si/MAS interface in the joints as the anchors, which made the fracture feature of the joints change from SiC-Si/MAS interface fracture to MAS fracture, resulting in an obvious improvement of the shear strength. The results showed that the average shear strength of the joints was increased by 49% by in situ synthesizing SiC NWs, which was primarily attributed to the excellent interface anchoring effects of SiC NWs involving the interfacial bonding anchoring between SiC NWs and SiC-Si layer and the mechanical interlocking anchoring between SiC NWs with the junctions and the surrounding grains. This study may provide new insight into the anchoring mechanisms and suggest a new design methodology for nanowire joints, leading to improved joint strength.

引用

页码：3926 / 3932

页数：7

共 22 条

[1] In situ carbon nanotube reinforcements in a plasma-sprayed aluminum oxide nanocomposite coating [J].