首页> 外文期刊>Journal of Materials Engineering and Performance >Modeling Reaction Front Propagation and Porosity in Pressure-Assisted Combustion Synthesis of Porous NiTi Intermetallics
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Modeling Reaction Front Propagation and Porosity in Pressure-Assisted Combustion Synthesis of Porous NiTi Intermetallics

机译:NiTi金属间化合物的压力辅助燃烧合成中反应前沿传播和孔隙率建模

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摘要

A mathematical model is developed to investigate the effect of various processing parameters on pressure-assisted combustion synthesis of NiTi intermetallics. Specifically, preheat and ambient temperature, particle size, initial porosity, and pressure differential are studied to determine their influence on propagation behavior and final porosity. The governing equations are solved using a high-order-implicit numerical scheme capable of accommodating the steep spatial and temporal gradients of properties. The predicted results appear plausible and consistent with the trends presented in the available literature.
机译:建立了数学模型以研究各种加工参数对NiTi金属间化合物的压力辅助燃烧合成的影响。具体而言,研究了预热和环境温度,粒度,初始孔隙率和压差,以确定它们对传播行为和最终孔隙率的影响。控制方程使用能够适应陡峭的空间和时间梯度特性的高阶隐式数值方案求解。预测结果似乎是合理的,并且与现有文献中提出的趋势相一致。

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