Potential use of polyvinyl alcohol as an effective inclusion vehicle of thermally reduced graphene oxides in nanoreinforced aluminum matrix composites

IF 1.5 4区 材料科学 Q3 ENGINEERING, MECHANICAL Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2023-08-18 DOI:10.1115/1.4063208
Andres Felipe Pava, Mateo Duarte Garcia, Sara N. Herrera, J. Meza, J. Herrera-Ramirez, C. Isaza M.
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Abstract

Polyvinyl alcohol (PVA) was investigated as a vehicle for incorporating thermally reduced graphene oxides (TRGOs) into metal matrix composites (MMCs). The TRGOs were synthesized using the modified Hummers' method and characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The PVA/TRGOs nanocomposites were synthesized using the solution mixing technique. The dispersion qualification and quantification of TRGOs in PVA were evaluated through tension and nanoindentation tests, as well as elastic modulus mapping by nanoindentation. The results demonstrated a good dispersion of TRGOs in the PVA matrix, resulting in exceptional mechanical properties. The dispersion time and energy variables were carefully controlled, leading to a good dispersion degree verified by the quantification analysis. Furthermore, preliminary studies confirmed the effectiveness of PVA as an inclusion vehicle for nanoreinforcements in metallic matrices.
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聚乙烯醇作为热还原氧化石墨烯在纳米增强铝基复合材料中的有效包合载体的潜在用途
研究了聚乙烯醇(PVA)作为将热还原氧化石墨烯(TRGOs)掺入金属基复合材料(MMCs)的载体。采用改进的Hummers方法合成了TRGOs,并利用扫描电镜(SEM)、透射电镜(TEM)、x射线衍射(XRD)和x射线光电子能谱(XPS)对其进行了表征。采用溶液混合技术合成了PVA/TRGOs纳米复合材料。通过拉伸和纳米压痕试验以及纳米压痕的弹性模量映射来评价TRGOs在PVA中的分散定性和定量。结果表明,TRGOs在PVA基体中分散良好,具有优异的力学性能。对色散时间和能量变量进行了严格的控制,定量分析证实了色散程度良好。此外,初步研究证实了聚乙烯醇作为金属基体中纳米增强物的包裹体的有效性。
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来源期刊
CiteScore
3.00
自引率
0.00%
发文量
30
审稿时长
4.5 months
期刊介绍: Multiscale characterization, modeling, and experiments; High-temperature creep, fatigue, and fracture; Elastic-plastic behavior; Environmental effects on material response, constitutive relations, materials processing, and microstructure mechanical property relationships
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