以板状刚玉和富铝尖晶石为主原料,采用泡沫浸浆凝胶工艺制备了Al2O3-(30 vol%)MgO@1.35Al2O3泡沫陶瓷.研究了分散剂AN-2000与pH值对Al2O3-(30vol%)MgO@1.35Al2O3混合浆料流变特性的影响.在pH值=9.5、AN-2000添加量为0.4 mL@m-2的条件下制备的粘度为O.14 Pa@s,固相体积分数为55%的Al2O3-(30vol%)MgO@1.35Al2O3混合浆料,通过有机泡沫浸浆、引发凝胶反应、湿坯干燥、排胶和烧结,制备出了气孔率为89.3%,强度为5.2 MPa的Al2O3-(30vol%)MgO@1.35Al2O3泡沫陶瓷.
参考文献
| [1] | Dhara S;Kamboj R K;Pradhan M et al.Shape forming of ceramic via gelcasting of aqueous particulate slurries[J].Bulletin of Materials Science,2002,25(06):565-568. |
| [2] | Liu Kaiqi;Song Shentai;LI Lin.Rheological behavior and gelcasting of Al2 O3/MgO 1.35Al2 O3 slurries containing coarse grains.Proceedings of the International Symposium on Refractories[M].Dalian,China: International Academic Publishers,2003:418-425. |
| [3] | Baklouti S;Pagnoux C;Chartier T et al.Processing of aqueousα-Al2O3 ,α-SiO2, and SiC suspension with polyelectrolyte[J].Journal of the European Ceramic Society,1997,17(12):1387-1392. |
| [4] | Wei W J;Lu S J;Yu B .Characterization of submicron alumina dispersions with poly( methacrylic acid) polyelectrolyte[J].Journal of the European Ceramic Society,1995,15(02):155-164. |
| [5] | Biggs S .Steric and bridging forces between surface bearing absorbed polymer:an atomic force microscopy study[J].Langmuir,1995,11:156-162. |
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