Pressing and Infiltration of Metal Matrix Nanocomposites

被引：4
|
作者：
Porter, Quinton [1 ,2 ]
Li, Xiaochun [3 ]
Ma, Chao [1 ,2 ]
机构：
[1] Texas A&M Univ, Dept Engn Technol & Ind Distribut, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA
[3] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
来源：
JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING | 2021年 / 5卷 / 02期
关键词：
metal matrix nanocomposites; pressing; infiltration; powder metallurgy; MECHANICAL-PROPERTIES; MELT-INFILTRATION; ALUMINUM; COMPOSITES; MICROSTRUCTURE; NANOPARTICLES; FABRICATION; BEHAVIOR;
D O I：
10.3390/jmmp5020054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ability to produce metal matrix nanocomposites via pressing and infiltration was validated. Al/TiC nanocomposite was used as the model material. Pressing the powder in a die yielded cylindrical specimens with a green density of 1.98 +/- 0.05 g/cm(3), which was increased to only 2.11 +/- 0.12 g/cm(3) by sintering. Direct infiltration of the pressed specimens at 1050 degrees C for 3.5 h yielded specimens with a density of 3.07 +/- 0.08 g/cm(3), an open porosity of 3.06 +/- 1.40%, and an areal void fraction of 8.09 +/- 2.67%. The TiC nanoparticles were verified to be well dispersed using energy-dispersive X-ray spectroscopy. The measured hardness of 64 +/- 3 HRA makes it a promising material for structural applications in industries such as aerospace and automotive.
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页数：8
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