Formation, structure, and thermal stability evolution of ternesite based on a single-stage sintering process
Formation, structure, and thermal stability evolution of ternesite based on a single-stage sintering process
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基于单阶段烧结过程的霰石的形成、结构和热稳定性演化
DOI：
10.1016/j.cemconres.2021.106519
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发表时间：
2021-09
影响因子：
11.4
通讯作者：
钱觉时
中科院分区：
文献类型：
--
作者：
刘垒;张文生;任雪红;叶家元;张江涛;钱觉时
以CaCO3、SiO2和CaSO4·2H2O为原料，采用一步固相反应法合成了水铝钙石。本文采用非原位法研究了烧结过程中三水硼钙石的形成、结构和热稳定性的变化。在1200 °C烧结12 h时，可获得纯度高达96.3%的特氟龙。扫描电子显微镜分析结果表明，三钠长石的形成得益于中间硅酸盐相的预形成。将烧结温度从1100 °C提高到约1250 °C有利于特氟龙晶体的生长，并且延长的持续时间也可以促进这种行为。多方法研究表明，随着晶体生长，其结构的完整性和对称性增强。通过热分析，在烧结过程中，特氟龙晶体的生长和结构发展最终导致较高的热稳定性。
Ternesite was prepared via a single-stage solid-state reaction from stoichiometric quantities of the CaCO3, SiO2and CaSO4·2H2O precursors. In this paper, the formation, structure, and thermal stability evolution of ternesite during sintering were investigated ex situ after quenching. The optimal sintering temperature for the formation of high-purity ternesite was approximately 1200 °C for 12 h, of which the purity level can reach as high as 96.3%. The results from scanning electron microscopy analysis suggest that the formation of ternesite benefited from the preformation of the intermediate silicate phase. Increasing the sintering temperature from 1100 °C to approximately 1250 °C was favourable for the growth of ternesite crystals, and a prolonged duration can also promote this behaviour. The structural perfection and symmetry of ternesite crystals increased with its growth, which was demonstrated by a multimethod approach. By means of thermal analysis, the growth and structural development of ternesite crystals during sintering eventually resulted in a higher thermal stability.
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影响因子：
11.4
作者：
Y. B. Pliego-Cuervo;F. Glasser
通讯作者：
Y. B. Pliego-Cuervo;F. Glasser
影响因子：
0.6
作者：
A. D. Korotaev;Y. Pochivalov
通讯作者：
A. D. Korotaev;Y. Pochivalov
影响因子：
1.8
作者：
C. He;A. Ilyushechkin;S. Hla
通讯作者：
C. He;A. Ilyushechkin;S. Hla
DOI：
10.1524/zkri.216.9.489.20350
发表时间：
2001-09
期刊：
Zeitschrift für Kristallographie - Crystalline Materials
影响因子：
--
作者：
V. Kahlenberg;R. Fischer;W. H. Baur
通讯作者：
V. Kahlenberg;R. Fischer;W. H. Baur
影响因子：
6.1
作者：
R. Young;P. Mackie;R. Dreele
通讯作者：
R. Young;P. Mackie;R. Dreele