Observation of the crystallization behavior of a slag containing 46 wt pct CaO, 46 wt pct SiO2</sub>, 6 wt pct Al2</sub>O3</sub>, and 2 wt pct Na2</sub>O using the double hot thermocouple technique

Christian Thales Mutale; Alan W. Cramb; Thomas Claudon

首页> 外文期刊>Metallurgical and Materials Transactions B >Observation of the crystallization behavior of a slag containing 46 wt pct CaO, 46 wt pct SiO2, 6 wt pct Al2O3, and 2 wt pct Na2O using the double hot thermocouple technique

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Observation of the crystallization behavior of a slag containing 46 wt pct CaO, 46 wt pct SiO2, 6 wt pct Al2O3, and 2 wt pct Na2O using the double hot thermocouple technique

机译：使用双重法观察了含46 wt％CaO，46 wt％SiO2 ，6 wt％Alt O3 和2 wt％Na2 O的矿渣的结晶行为热电偶技术

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In this work, isothermal crystallization of a synthetic slag containing 46 wt pct CaO, 46 wt pct SiO2, 6 wt pct Al2O3, and 2 wt pct Na2O has been investigated by means of double hot thermocouple technique (DHTT). The effect of Na2O content on crystallization time was confirmed. Two different types of calcium silicate crystals were observed. Calcium di-silicate forms at temperatures above 1150 °C and calcium tri-silicate precipitate at temperatures below 1050 °C. A mixture of the two types of calcium silicate has been observed between the two temperatures. The tendency of crystals to become richer in calcium at low temperatures that has also been observed in previous published works has been confirmed. No effect of the cooling rate on crystallization start time was confirmed in the range of cooling rates applied in this investigation.

机译：在这项工作中，含有46 wt％的CaO，46 wt％的SiO2 ，6 wt％的Al2 O3 和2 wt％的Na2 的合成渣的等温结晶具有通过双重热电偶技术（DHTT）进行了研究。证实了Na 2 O含量对结晶时间的影响。观察到两种不同类型的硅酸钙晶体。在高于1150°C的温度下会生成二硅酸钙，而在低于1050°C的温度下会生成三硅酸钙沉淀。在两个温度之间已经观察到两种类型的硅酸钙的混合物。在先前发表的著作中也观察到了晶体在低温下富含钙的趋势，这一事实已得到证实。在本研究中应用的冷却速率范围内，未确认冷却速率对结晶开始时间的影响。

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《Metallurgical and Materials Transactions B》 |2005年第3期|417-418|共2页
作者
Christian Thales Mutale; Alan W. Cramb; Thomas Claudon;
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the Center for Iron and Steelmaking Research Materials Science ampamp Engineering Department Carnegie Mellon University 15213 Pittsburgh PA;

the Center for Iron and Steelmaking Research Materials Science ampamp Engineering Department Carnegie Mellon University 15213 Pittsburgh PA;

the Professional University Institute of Environmental Engineering University Paul Verlaine Metz France;

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Observation of the crystallization behavior of a slag containing 46 wt pct CaO, 46 wt pct SiO2, 6 wt pct Al2O3, and 2 wt pct Na2O using the double hot thermocouple technique

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