| 炭/炭复合材料热梯度CVI工艺中温度场的数值模拟 |
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| 引用本文： | 赵建国,李克智,李贺军,翟言强,王闯. 炭/炭复合材料热梯度CVI工艺中温度场的数值模拟[J]. 材料工程, 2006, 0(Z1): 326-328,333 |
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| 作者姓名： | 赵建国 李克智 李贺军 翟言强 王闯 |
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| 作者单位： | 1. 西北工业大学,材料学院,西安,710072;山西大同大学,山西,大同,037009
2. 西北工业大学,材料学院,西安,710072 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 阐明了用于制备炭/炭复合材料的热梯度化学气相沉积工艺过程和原理,测定了沉积过程中预成型体内不同位置的温度.建立了炭/炭复合材料热梯度CVI的2D轴对称几何模型,以及热梯度CVI工艺中的导热微分方程,对热梯度CVI工艺中的梯度温度场进行了模拟分析,并将模拟结果与实际测试结果进行了对比.
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| 关 键 词： | 炭/炭复合材料 热梯度化学气相沉积 温度场 数值模拟 炭复合材料 热梯度化学气相沉积 工艺过程 温度场 数值模拟 Carbon Process Thermal Gradient Temperature Field Simulation Numerical 测试结果 模拟结果 模拟分析 导热微分方程 几何模型 轴对称 位置 预成型体 沉积过程 |
| 文章编号： | 1001-4381(2006)Suppl-0326-03 |
Numerical Simulation of Temperature Field in Thermal Gradient CVI Process for Carbon/Carbon Composites |
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| ZHAO Jian-guo,LI Ke-zhi,LI He-jun,ZHAI Yan-qiang,WANG Chuang. Numerical Simulation of Temperature Field in Thermal Gradient CVI Process for Carbon/Carbon Composites[J]. Journal of Materials Engineering, 2006, 0(Z1): 326-328,333 |
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| Authors: | ZHAO Jian-guo LI Ke-zhi LI He-jun ZHAI Yan-qiang WANG Chuang |
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| Abstract: | It was illuminated the principle and advantage of thermal gradient chemical vapor infiltration(CVI) technology for preparation of carbon/carbon composites.The temperature gradient in preforms was measured and the plot of temperature gradient via position was presented and discussed.The simplifying 2D axial symmetric geometry model and the energy transport balance equations including heat conduction,convection and radiation were built,respectively.The simulation by the finite element method aimed to describe the temperature field of the thermal gradient CVI processes for carbon/carbon composites had been performed.The simulated temperature fields were compared with the experimental measure values. |
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| Keywords: | carbon/carbon composites thermal gradient chemical vapor infiltration temperature field numerical simulation |
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