Facile fabrication of cordierite-based porous ceramics with magnetic properties

Abstract In this paper, cordierite-based porous ceramics with magnetic properties have been firstly in-situ synthesized by using MgO, Al 2 O 3 , and SiO powders as raw materials Fe 4 a functional additive. Combining the foam freeze casting method, near net size fabrication (total linear shrinkage < 2.86%) of was realized adjusting amount . The porosity, compressive strength, saturation magnetization prepared were 83.9%–87.8%, 1.51–2.65 MPa, 1.2–5.8 emu/g, respectively. phase composition microstructure evolutions during sintering investigated briefly. results showed that synthesis temperature cordierite lowered about 100 °C due to addition Except for main phase-cordierite, Mg—Al—Fe spinel α-Fe also existed in final materials. lattice parameters changed obviously change amount, which mainly influenced Thus, facile method has put forward paper.