Formation of celsian from mechanically activated BaCO3-Al2O3-SiO2 mixtures

S.Boskovic; D.Kosanovic

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Formation of celsian from mechanically activated BaCO3-Al2O3-SiO2 mixtures

机译：机械活化的BaCO3-Al2O3-SiO2混合物形成硅藻土

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A ternary mixture BaCO3-Al2 0 3-Si02 wasmechanically activated for different lengths of time. Chemicalcomposition of the mixture corresponded to BaAl2Si2 0 8-BAS. Asa function of activation time, reaction course was followed in thetemperature range 750- 1200℃ . Reaction of celsian formationwas followed using thermogravimetry as well as conventional andhigh-temperature X-ray diffractometry. The obtained data showthat reaction rate increases with prolonged activation time, underthe same conditions of thermal treatment. Formation ofhexacelsian via a series of solid state reactions involving Ba-silicates, was favoured with increasing activation time. Directformation of monoclinic celsian was retarded, however, withprolonged activation.

机译：机械活化了三元混合物BaCO3-Al2 0 3-SiO2不同的时间长度。混合物的化学组成对应于BaAl 2 Si 2 0 8-BAS。作为活化时间的函数，在750-1200℃的温度范围内遵循反应过程。使用热重分析法以及常规的高温X射线衍射法来进行celsian形成的反应。所得数据表明，在相同的热处理条件下，反应速率随活化时间的延长而增加。通过一系列涉及钡硅酸盐的固态反应形成六硅酸盐，增加了活化时间。单斜硅藻土的直接形成受阻，但活化时间延长。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |1999年第2期|共6页
作者
S.Boskovic; D.Kosanovic;
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正文语种 eng
中图分类合金学与各种性质合金;金属材料;
关键词
Mechanical activation; Celsian; 钡长石; 机械活化;

机译：Mechanical activation;Celsian;钡长石;机械活化;

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3. Formation of celsian from mechanically activated BaCO3-Al2O3-SiO2 mixtures [J] . S.Boskovic, D.Kosanovic Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 1999,第1a2期

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Formation of celsian from mechanically activated BaCO3-Al2O3-SiO2 mixtures

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