| 水基凝胶注模坯体的排胶工艺研究 |
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| 引用本文： | 刘晓光,仝建峰,李宝伟,陈大明.水基凝胶注模坯体的排胶工艺研究[J].航空材料学报,2005,25(1):48-52. |
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| 作者姓名： | 刘晓光 仝建峰 李宝伟 陈大明 |
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| 作者单位： | 北京航空材料研究院,先进复合材料国防科技重点实验室,北京,100095 |
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| 摘 要： | 研究了排胶工艺的影响因素,以及水基凝胶注模坯体排胶后的微观组织及气孔分布情况。结果表明,升温速率、保温时间、坯体厚度及表面积均对排胶过程有很大影响。结合DTA-TG曲线,分析排胶过程中物理化学变化,并比较几种成型法坯体的排胶工艺。
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| 关 键 词： | 排胶工艺 水基凝胶注模 微观组织 DTA-TG |
| 文章编号： | 1005-5053(2005)01-0048-05 |
| 修稿时间： | 2003年12月9日 |
Study on Binder Removal Process of Green Bodies of Aqueous Gel-casting |
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| LIU Xiao-guang,TONG Jian-feng,LI Bao-wei,CHEN Da-ming.Study on Binder Removal Process of Green Bodies of Aqueous Gel-casting[J].Journal of Aeronautical Materials,2005,25(1):48-52. |
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| Authors: | LIU Xiao-guang TONG Jian-feng LI Bao-wei CHEN Da-ming |
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| Abstract: | The binder removal process is one of critical steps in the fabrication of aqueous gel casting materials. Effects on binder removal were particularly studied in this paper, and microstructures, and pore distributions of green bodies of aqueous gel casting were also studied. Results show that temperature-increasing rate, holding time, thickness of green bodies and surface areas have a great influence on binder removal process. According to curve of DTA-TG, physical and chemical reactions under binder removal process were analyzed, meanwhile several binder removal processes were compared. |
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| Keywords: | binder removal aqueous gel casting microstructures DTA-TG |
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