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1·The alumina ceramics is gel-mould cast with low toxic N methylolacrylamide system. This paper reports the investigation on the preparation of alumina suspension and its solidification process.

采用低毒的N 羟甲基丙烯酰胺体系凝胶注模成型氧化铝陶瓷，研究了该体系下浓悬浮体的制备及固化过程。

2·Objective: Aim of this study was to evaluate the effect of silica coating with sol-gel process on bonding strength between glass infiltrated alumina ceramic and resin luting cement.

目的：探讨利用溶胶凝胶法进行纳米硅涂层表面改性对玻璃渗透氧化铝陶瓷粘结强度的影响。

3·Synthesis of alumina aerogel via sol-gel has motivated a worldwide interest due to their application potentials in the high-temperature catalysts and high-temperature thermal insulation etc.

经溶胶-凝胶法制备的氧化铝气凝胶是一种新型耐高温的纳米多孔材料，在高温催化和高温隔热等领域具有广阔的应用前景，因而备受关注。

4·Metallic nickel and ceramic alumina, magnesia fibres were prepared respectively by the organic-gel method from the raw materials of citric or lactic acid and the their metal salts.

以柠檬酸、乳酸及金属盐为原料，采用有机凝胶法制备了微细金属镍纤维、氧化镁纤维和氧化铝纤维。