| 烟煤与SiO2合成SiC和Si3N4超细粉的研究 |
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| 引用本文： | 王晓刚,李晓池,牟国栋,陈寿田. 烟煤与SiO2合成SiC和Si3N4超细粉的研究[J]. 中国粉体技术, 2000, 6(Z1) |
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| 作者姓名： | 王晓刚 李晓池 牟国栋 陈寿田 |
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| 作者单位： | 西安科技学院!陕西西安710054(王晓刚，李晓池，牟国栋)，西安交通大学!陕西西安710049(陈寿田) |
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| 基金项目： | 陕西省教委重点科研项目资助 |
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| 摘 要： | 以 9种烟煤与SiO2 为原料 ,分别在氮气氛下进行合成试验。结果表明 ,在 15 0 0℃条件下 ,低变质烟煤易于形成SiC ,高变质烟煤易于形成Si3N4 ,而处于煤种过渡阶段的气煤、肥煤和焦煤既不易合成SiC也不易合成Si3N4 。其原因主要与不同变质程度烟煤在高温下的体变特性和孔隙结构差异有关
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| 关 键 词： | 烟煤 合成 SiC和Si_3N_4 超细粉 |
Study on Synthsizing SiC and Si3N4 Fine Powder with Coal and SiO2 |
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| Wang Xiaogang ,Li Xiaochi ,Mu Guodog ,Chen Shoutian. Study on Synthsizing SiC and Si3N4 Fine Powder with Coal and SiO2[J]. China Powder Science and Technology, 2000, 6(Z1) |
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| Authors: | Wang Xiaogang Li Xiaochi Mu Guodog Chen Shoutian |
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| Affiliation: | Wang Xiaogang 1,Li Xiaochi 1,Mu Guodog 1,Chen Shoutian 2 |
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| Abstract: | Under the condition of 1500℃ with N2 gas,the experiments show that SiC can be easily synthesized with low rank coal and Si3N4 can be easily synthesized with high rank coal,but neither SiC nor Si3N4 is easily synthesized with gas coal,rich coal and coke coal which are between low rank coal and high rank coal.And the reasons are mainly related to the property that the bodies of various rank coals get variations under high temperature and the difference of their pore structure. |
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| Keywords: | coal synthesizing SiC and Si_3N_4 superfine powder |
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