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首页> 外文期刊>Journal of Materials Engineering and Performance >Fabrication of Short Graphite Fiber Preforms for Liquid Metal Infiltration
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Fabrication of Short Graphite Fiber Preforms for Liquid Metal Infiltration

机译：液态金属渗透用短石墨纤维预制棒的制备

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摘要

Starch-based and paraffin wax (PW)-based binders were used to fabricate short graphite fiber preforms for liquid metal infiltration. The effects of different binder components and debinding process parameters on the properties of short graphite fiber preforms were investigated. The results indicate that the graphite fiber preforms with appropriate porosity of 58-62% and relatively high compressive strength of about 2-3 MPa can be made by starch-based and PW-based binders. The graphite fiber preforms made from the PW-based binder exhibit higher compressive strength than that of the starch-based binder. Graphite fiber reinforced aluminum composites fabricated by utilizing these preforms through vacuum pressure infiltration have relatively high density of 98.5% and thermal conductivity of 186.3 W/m K, proving the applicability of the prepared preforms for liquid metal infiltration.
机译：使用基于淀粉和石蜡（PW）的粘合剂来制造用于液态金属渗透的短石墨纤维预成型坯。研究了不同的粘合剂组分和脱脂工艺参数对短石墨纤维预成型坯性能的影响。结果表明，可以通过淀粉基和PW基粘合剂制备具有58-62％的适当孔隙率和约2-3MPa的较高抗压强度的石墨纤维预成型件。由PW基粘合剂制成的石墨纤维预成型件显示出比淀粉基粘合剂更高的压缩强度。通过利用这些预成型件通过真空压力渗透而制备的石墨纤维增强铝复合材料具有相对较高的密度（98.5％）和热导率（186.3 W / m K），证明了所制备的预成型件可用于液态金属渗透。

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