Open AccessEffect of Powder Composition on the Preparation of SiCfoam/Al Co-continuous Phase Composites by In-situ Reactive Pressureless Infiltration
Author(s) -
Qing Xiao,
Guojian Jiang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/714/3/032014
Subject(s) - materials science , composite material , composite number , brittleness , mass fraction , in situ , phase (matter) , magnesium , spinel , metallurgy , chemistry , organic chemistry
The SiC foam /Al co-continuous phase composite was prepared by in-situ reaction pressureless infiltration (ISRPI). The influence of powder ratio on the impregnation effect and the mechanical properties of the material was studied. The relationship between the mechanical properties and the interfacial reaction was discussed. The results show that the addition of Mg powder of 8% mass fraction increases the impregnation effect, and the formed magnesium spinel strengthens the bonding interface, which makes the compacting of the composite improve. At the same time, adding 2% mass fraction of Si in the infiltrated powder can inhibit the production of brittle material Al 4 C 3 and improve the mechanical properties of the composites. The compressive strength of SiC foam /Al co-continuous phase composites with good interfacial bonding reaches 832MPa.