Synthesis, characterization and sintering behaviour of indialite ceramic from fly ash

Zhitong Yao; Shengheng Tan; Meisheng Xia

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Synthesis, characterization and sintering behaviour of indialite ceramic from fly ash

机译：粉煤灰中印度石陶瓷的合成、表征及烧结行为

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摘要

Indialite ceramic was prepared using fly ash and magnesium carbonate powder as precursors. The effects of sintering aids LiOH - H_2O and TiO_2 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 4h. With increasing amounts of LiOH - H_2O, the viscosity decreased and P-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 TiO_2 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.

机译：以粉煤灰和碳酸镁粉为前驱体制备了Indialite陶瓷。研究了烧结助剂LiOH-H_2O和TiO_2对其结晶和形貌演化的影响。X射线衍射结果表明，在1200°C下进行固相烧结反应4h，实现了印度石的形成。随着LiOH-H_2O量的增加，粘度降低，P-锂辉石、尖晶石相开始发展，而印度石则以牺牲印度石为代价。扫描电子显微镜观察表明，烧结样品表面变得更加光滑，孔隙率损失更高，晶粒尺寸减小。随着TiO_2含量从4%增加到10%，同时食用印度石形成了多芬孪晶石英和金红石。在此过程中，粘度没有明显变化。

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来源
《Waste Management & Research》 |2011年第10期|1090-1097|共8页
作者
Zhitong Yao; Shengheng Tan; Meisheng Xia;
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作者单位

Department of Ocean Science and Engineering, Zhejiang University, Hangzhou, China.;

Department of Environmental Science and Engineering, Tsinghua University, Beijing, China.;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类废物处理与综合利用;
关键词
Fly ash; indialite ceramic; solid state sintering; lithium hydroxide monohydrate; titanium(IV) oxide;

机译：粉煤灰;Indialite 陶瓷;固态烧结;氢氧化锂一水合物;氧化钛（IV）;

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Synthesis, characterization and sintering behaviour of indialite ceramic from fly ash

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