| 贫镁和富镁坡缕石的热变化规律研究 |
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| 引用本文： | 熊飞,万琳. 贫镁和富镁坡缕石的热变化规律研究[J]. 岩石矿物学杂志, 2011, 30(6): 1059-1062 |
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| 作者姓名： | 熊飞 万琳 |
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| 作者单位： | 洛阳理工学院材料科学与工程系,河南洛阳,471023 |
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| 摘 要： | 贫镁和富镁坡缕石受热时表现出不同的热变化规律。物相分析表明,将提纯样品加热到设定温度并保温2h后,贫镁坡缕石经历了失水和玻璃相阶段:300℃以下晶体结构基本没变,350℃开始发生"折叠作用",400℃以上晶体结构被完全破坏,生成玻璃相;富镁坡缕石经历了失水、玻璃相和新晶相(顽火辉石)阶段:300℃以下晶体结构基本没变,350~500℃发生"折叠作用",600~950℃生成玻璃相,950℃以上生成顽火辉石雏晶。富镁坡缕石保持热稳定性的温度低于600℃,贫镁坡缕石的低于400℃。
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| 关 键 词： | 贫镁坡缕石 富镁坡缕石 物相分析 热变化规律 |
| 收稿时间： | 2010-05-15 |
| 修稿时间： | 2010-11-19 |
A study of thermal behaviors of magnesium_poor and magnesium_rich palygorskite |
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| XIONG Fei and WAN Lin. A study of thermal behaviors of magnesium_poor and magnesium_rich palygorskite[J]. Acta Petrologica Et Mineralogica, 2011, 30(6): 1059-1062 |
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| Authors: | XIONG Fei and WAN Lin |
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| Affiliation: | XIONG Fei and WAN Lin(Department of Materials Science and Engineering,Luoyang Institute of Science and Technology,Luoyang 471023,China) |
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| Abstract: | The MgO concentration in the magnesium-rich palygorskite is 16.23,which is almost twice its concentration in the magnesium-poor palygorskite,whereas the Fe2O3 concentration in magnesium-poor palygorskite is almost twice its concentration in magnesium-rich palygorskite.The thermal behaviors vary with the chemical composition of the palygorskite.The results of phase analysis,which was carried out with the purified samples which had been heated and kept at a certain temperature for 2h,show that magnesium-poor ... |
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| Keywords: | magnesium-poor palygorskite magnesium-rich palygorskite phase analysis rules of thermal behaviors |
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