Optimization of SiCp Surface and Interface Structure of SiCp/A390 Composites
Ai-qin Wang, Hui-dan Guo, Min Li, Jing-pei Xie, Dou-qin Ma
Available Online February 2017.
- https://doi.org/10.2991/icmeim-17.2017.110How to use a DOI?
- Composite Materials, Surface Modification, Powder Metallurgy Method, Interface Structure, Interface Reaction
- SiCp/A390 (SiC particle reinforced Al matrix) composites before and after SiC particles surface modification were manufactured respectively by powder metallurgy, and the mass fraction of SiCp is 20%. The surface morphology of SiCp and the interface morphology of SiC/Al and SiC/Si of composites were characterized by TEM. The chemical state of interface material of SiCp/A390 composites was tested by XPS. The effect of surface modification of SiCp on interface structure of composites and thermodynamic principle of mechanism of interface formation of SiCp/A390 were researched. The results show that SiCp morphology was changed though surface optimization treatment, the dense SiO2 oxide layer on the surface of SiCp was formed when SiC particles were roasted at 1000 , which thickness membrane is about 50 nm. Before SiC particles surface modification, the interface of SiC/Al of composites is clear, clean interface, and discovered a small amount of amorphous layer interface of SiC/Al. While, after SiC optimization, the interface of SiC/Al of composites is an amorphous layer between two phases, and there is no Al4C3 in SiCp/A390 composites. Surface modification treatment of SiCp can increase chemical reaction degree of the interface of composites, and effectively improve the interface bonding of SiC and Al.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Ai-qin Wang AU - Hui-dan Guo AU - Min Li AU - Jing-pei Xie AU - Dou-qin Ma PY - 2017/02 DA - 2017/02 TI - Optimization of SiCp Surface and Interface Structure of SiCp/A390 Composites BT - 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017) PB - Atlantis Press SP - 646 EP - 653 SN - 2352-5401 UR - https://doi.org/10.2991/icmeim-17.2017.110 DO - https://doi.org/10.2991/icmeim-17.2017.110 ID - Wang2017/02 ER -