Influence of nano and micro particles on the expansion and mechanical properties of aluminum foams

被引：30
|
作者：
Bhogi, S. [1 ]
Nampoothiri, J. [2 ]
Ravi, K. R. [2 ]
Mukherjee, M. [1 ]
机构：
[1] Indian Inst Technol Madras, Dept Met & Mat Engn, Chennai 600036, Tamil Nadu, India
[2] PSG Inst Adv Studies, Struct Nanomat Lab, Coimbatore 641004, Tamil Nadu, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 685卷
关键词：
Tomography; Mechanical characterization; Porous materials; Composites; Stabilization; AL FOAM; MICROSTRUCTURE; NANOCOMPOSITE; FOAMABILITY; STRENGTH; BEHAVIOR; METALS; SICP;
D O I：
10.1016/j.msea.2016.12.127
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, the foaming behavior of metal matrix composites (MMCs) containing micron-and nano-sized TiB2 particles was compared. Foaming was achieved by adding blowing agent into the MMC melt at 670 degrees C. Macrostructural and microstructural characterization of the foams were performed by using X-ray tomography and scanning electron microscopy. Quasi-static compression tests were conducted to analyze the mechanical behavior of the foams. Foams stabilized by nanoparticles showed higher expansion than those stabilized by micron -sized particles indicating a better stabilization by nanoparticles. The foams containing nanoparticles also exhibited better mechanical properties. This is mainly due to the presence of nanoparticles in the microstructure.
引用
收藏
页码：131 / 138
页数：8
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