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Updated: Jun 25, 2025

Negative Additive Manufacturing of Complex Shaped Boron Carbides
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聚合物/煤复合物的基于油墨的增材制造:一种非传统的增强材料

Barath Sundaravadivelan1, Dharneedar Ravichandran2, Anna Dmochowska3

  • 1Department of Mechanical Engineering, School for Engineering of Matter, Transport, and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, Arizona 85281, United States.

ACS applied engineering materials
|May 29, 2024
PubMed
概括

研究人员探索使用粉碎煤作为3D打印油墨的可持续增强剂. 仅添加2 wt%的煤炭显著提高了材料的强度,证明了这种丰富资源的新应用.

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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Reinforced concrete is a composite material used extensively in construction, combining the compressive strength of concrete with the tensile strength of steel. This synergy is essential as concrete, while excellent at resisting compression, is weak under tension. Steel bars, or rebars, are embedded in the concrete to handle these tensile forces. The choice of steel is strategic; it shares a similar coefficient of thermal expansion with concrete, which ensures uniformity in response to...
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Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
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