Abstract Wood and metal are the two most common materials, both with distinct advantages and disadvantages. Through the metallization process, the inherent defects of the two materials can be avoided, so that the composite material exhibits excellent structural properties and anisotropy. In this study, the pine wood was pretreated with dilute ammonia (5%), and then the low melting point Sn–Bi alloy was filled into the pine fiber without lignin at 180 °C and 3000 Pa. The density of metallic wood is about 3 times that of pine, while the impact toughness can be up to 2 times that of pine. By building the capillary buddle model, the filling mechanism of molten metal in pine wood was analyzed, and it was clear that high vacuum, high temperature, large porosity and large tracheid diameter are the conditions for rapid penetration. The conductive anisotropy was found on metalized wood, making metalized wood available in different places with requirements for electromagnetic shielding and antistatic.

中文翻译：

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低熔点锡铋合金在松木纤维通道中的渗透行为

摘要 木材和金属是最常见的两种材料，各有优缺点。通过金属化工艺，可以避免两种材料固有的缺陷，使复合材料表现出优异的结构性能和各向异性。本研究中，将松木用稀氨水（5%）进行预处理，然后在 180 °C 和 3000 Pa 下将低熔点 Sn-Bi 合金填充到不含木质素的松木纤维中。金属木材的密度约为是松木的3倍，而冲击韧性可达松木的2倍。通过建立毛细管束模型，分析了松木中熔融金属的充填机理，明确高真空、高温、大孔隙率和大管胞直径是快速渗透的条件。