| 白云石为钙镁源合成六铝酸钙和尖晶石的研究 |
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| 引用本文： | 曾春燕,易帅,黄朝晖,房明浩,刘艳改. 白云石为钙镁源合成六铝酸钙和尖晶石的研究[J]. 建材地质, 2010, 0(6): 7-9 |
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| 作者姓名： | 曾春燕 易帅 黄朝晖 房明浩 刘艳改 |
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| 作者单位： | 中国地质大学（北京）材料科学与工程学院,北京100083 |
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| 基金项目： | “十一五”863重点项目（2009AA032501）; 国家自然科学基金项目（51072186） |
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| 摘 要： | 本文以白云石[CaMg（CO3）2]和Al（OH）3为原料合成六铝酸钙（CA6）和尖晶石（MgAl2O4）,分析了不同原料配比对试样的物相组成和显微形貌影响。研究结果表明：以白云石和Al（OH）3在1 550℃保温3h可以合成CA6和MgAl2O4;在该温度条件下不同白云石和Al（OH）3摩尔配比的5组试样烧结后的主要物相为CA6及MgAl2O4,六铝酸钙呈现片晶状,尖晶石呈细小颗粒状。
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| 关 键 词： | 白云石 合成 六铝酸钙 尖晶石 |
Study on Synthesis of CA6 and MgAl_2O_4 With Dolomite as a Source of Calcium and Magnesium |
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| ZENG Chun-yan,YI Shuai,HUANG Zhao-hui,FANG Ming-hao,LIU Yan-gai. Study on Synthesis of CA6 and MgAl_2O_4 With Dolomite as a Source of Calcium and Magnesium[J]. , 2010, 0(6): 7-9 |
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| Authors: | ZENG Chun-yan YI Shuai HUANG Zhao-hui FANG Ming-hao LIU Yan-gai |
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| Affiliation: | (School of Materials Science and Technology,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | Calcium hexaluminate（CA6） and alumo-magnesia spinel（MgAl2O4） were synthesized using dolomite（CaMg（CO3）2） and Al（OH）3 as raw materials in this paper.Effect of γ-Al2O3/CaO ratio on phase composition,microstructure were studied.The results showed that： CA6 and MgAl2O4 were synthesized at 1 550℃ for 3h.The main phase of five specimens with different CaMg（CO3）2 /Al（OH）3 ratio at the same sintering condition were CA6 and MgAl2O4,which shaped in platelet crystalline and graininess crystalline,small graininess crystalline,respectively. |
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| Keywords: | dolomite synthesis calcium hexaluminate alumo-magnesia spinel |
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