Department of Ocean Science and Engineering, Zhejiang University, Hangzhou, China.
Waste Manag Res. 2011 Oct;29(10):1090-7. doi: 10.1177/0734242X10378329. Epub 2010 Jul 29.
Indialite ceramic was prepared using fly ash and magnesium carbonate powder as precursors. The effects of sintering aids LiOH · H2O and TiO2 on its crystallization and morphology evolution were studied as well. X-ray diffraction results indicated that the formation of indialite was achieved by solid-state sintering reactions at 1200 °C for 4 h. With increasing amounts of LiOH · H2O, the viscosity decreased and β-spodumene, spinel phases started to develop at the expense of indialite. Scanning electron microscopy observations revealed that the surface of the sintered samples became smoother with higher porosity losses and grain size reduction. As the TiO2 contents increased from 4 to 10%, dauphine-twinned quartz and rutile were formed by simultaneously consuming indialite. In this process, the viscosity showed no significant changes.
采用粉煤灰和碳酸镁粉末作为前驱体来制备铟锂硅陶瓷。研究了烧结助剂 LiOH·H2O 和 TiO2 对其结晶和形貌演变的影响。X 射线衍射结果表明，在 1200°C 下烧结 4 h 即可通过固态烧结反应生成铟锂硅。随着 LiOH·H2O 添加量的增加，其粘度降低，β-锂辉石和尖晶石相开始形成，而铟锂硅相逐渐减少。扫描电子显微镜观察表明，随着烧结样品表面变得更加光滑，其孔隙率损失和晶粒尺寸减小。当 TiO2 含量从 4%增加到 10%时，通过同时消耗铟锂硅形成了孪晶石英和金红石。在这个过程中，其粘度没有明显变化。
