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In flowing nitrogen, non-oxides such as bonded Al 2 O 3 -based composites were successfully prepared by a gaseous phase mass transfer pathway using aluminum, zirconia, alumina, and magnesia as raw materials at 1873 K, after an Al-AlN core-shell structure was formed at 853 K.Resin bonded Al-Al 2 O 3 -MgO-ZrO 2 composites after sintering were characterized and analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM) and, energy dispersive spectrometer (EDS), and the influence of the MgO content on the sintered composites was studied. The results show that after sintering, the phase composition of the , while the phase composition of the Al-Al 2 O 3 -ZrO 2 composite with the addition of MgO 6 wt% and MgO 12 wt% is , respectively. The addition of MgO changed the phase composition and distribution for the resin bonded Al-Al 2 O 3 -MgO-ZrO 2 system composites after sintering. When the added MgO content is equal to or more than 12 wt%, the Al 4 O 4 C in the resin bonded Al-Al 2 O 3 -MgO-ZrO 2 system composites is unable to exist in a stable phase.

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