中文摘要：

以Al2O3-MgO-P2O5磷酸盐为粘结剂,采用有机泡沫浸渍工艺制备了多孔陶瓷,采用扫描电镜（SEM）、X射线衍射（XRD）、排水法和压缩实验等表征了多孔陶瓷的孔隙特征、物相组成和力学性能。结果表明,Al2O3-MgO-P2O5磷酸盐的加入不仅保证了浆料在泡沫体上的均匀涂覆,而且促进了陶瓷的烧结。得到的多孔陶瓷具有相互连通、分布均匀的孔隙结构（大孔孔径在200～500μm,还有约为3μm微孔）,平均孔隙率为85.9%±1.6%。这种由HA、β-Ca2P2O7和少量的Mg3（PO4）2与Al（PO3）3组成的复合磷酸盐陶瓷具有良好的力学性能,其平均压缩强度为（1.04±0.15）MPa。

英文摘要：

The porous ceramics were prepared by the foam impregnation technology using Al2O3-MgO-P2O5 as binder.Porous properties,crystalline phase and mechanical property were investigated by using scan emission microscope（SEM）,X-ray diffraction（XRD）,archimedes drainage method,and compression tests.It showed that Al2O3-MgO-P2O5 phosphate not only promoted sintering of ceramics,but also improved coating of ceramic slurry over the foams uniformly.The obtained ceramics have connective,uniform pore structures with macro-pores about 200~500 μm diameter,micro-pores about 3 μm diameter and average porosity of 85.9%±1.6%.Porous ceramics were polyphosphates composed of HA,β-Ca2P2O7 and few Mg3（PO4）2,Al（PO3）3 and the average compressive strength was（1.04±0.15）MPa.