Effects of SiC and MgO on aluminabased ceramic foams filters

Effects of SiC and MgO on aluminabased ceramic foams filters

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Alumina-based foam ceramic filters were fabricated by using alumina, SiC, magnesia powder as major materials.It has O-Rings been found that this ceramic filter has a uniform macrostructure for filtering molten metals.The influences of SiC and magnesia content, the sintering temperatures on ceramic properties were discussed.Aluminabased foam ceramic filters containing 2.

2 mass% magnesia and 7.6 mass% SiC eyeliner has a compressive strength of 1.36 MPa and a thermal shock resistance of 5 times.Its main phases after 1 hour sintering at 1 500 consist of alumina, silicon carbide, spinel and mullite.