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The effect of reinforcement particle size on the mechanical and fracture properties of glass matrix composites.

ABSTRACT: The strength and toughness of sealing glass are currently unable to meet increasingly severe application conditions, and composites are an effective way to solve this problem. The size of reinforcement particles significantly affects the material properties, while the underlying mechanism still eludes deeper understanding. In this paper, the influence of the embedded alumina size is investigated from the perspectives of mechanical and fracture properties by mechanical tests, fracture toughness tests and the finite element method. The results of the experiment and simulation indicate that the fracture energy is mainly consumed by interface debonding and particle breakage, and the former consumes more energy. Materials with large particles have better mechanical properties, while those with small particles have better fracture properties. This difference could be ascribed to the curvature of the particles rather than the size. Therefore, an ideal reinforcement particle shape with both mechanical and fracture advantages is proposed. The results shed light on the nature of particle enhancement and point out a new direction for the design of sealing glass composites.

SUBMITTER: Cai Y

PROVIDER: S-EPMC10694181 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature

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The effect of reinforcement particle size on the mechanical and fracture properties of glass matrix composites.

Cai Yangyang Y Liu Zheng Z Gong Keqian K Zhang Yong Y

Heliyon 20231110 11

The strength and toughness of sealing glass are currently unable to meet increasingly severe application conditions, and composites are an effective way to solve this problem. The size of reinforcement particles significantly affects the material properties, while the underlying mechanism still eludes deeper understanding. In this paper, the influence of the embedded alumina size is investigated from the perspectives of mechanical and fracture properties by mechanical tests, fracture toughness t ...[more]

PMID: 38053864

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Project description:Thermal conductivity of natural rubber (NR) was enhanced by incorporating novel conductive hybrid nanofillers, namely polyaniline grafted carbon black (PANI/CB) nanoparticles and carbon black nanoparticles linked with carbon microfiber (CF/CB) composites. The PANI/CB hybrid fillers were synthesized using an in situ method, where aniline monomers were initially adsorbed onto carbon black spherical domains and, afterwards, it was polymerized in the presence of an oxidizer. Final rubber composites were prepared through melt mixing, where PANI/CB and CF/CB filler loading was kept at 40 parts per hundred of rubber (phr). The thermal conductivity values of the rubber composites with CF/CB (20 : 20) and PANI/CB (20 : 20) yield were 0.45 W m-1 K-1 and 0.31 W m-1 K-1, respectively and the thermal conductivity improved significantly compared to the control (0.25 W m-1 K-1) sample. The higher thermal conductivity values of CF/CB and PANI/CB incorporated composites suggest that the generated networked structure of CF and PANI nanofibers with CB nanoparticles has immensely contributed to enhancing the heat dissipation compared to that of the neat CB rubber composite. Scanning electron micrographs (SEM) confirmed the attachment of the synthesized PANI onto the spherical CB nanoparticles and interconnected morphology of CF/CB and PANI/CB hybrid fillers. The synthesized PANI/CB hybrid filler was further characterized using Fourier-transform infrared (FTIR) spectroscopy to evaluate the chemical properties. Furthermore, thermogravimetric analysis revealed the higher thermal stability of CF/CB (20 : 20) and PANI/CB (20 : 20) composites compared to the control. Moreover, the addition of CF/CB (20 : 20) and PANI/CB (20 : 20) improved the mechanical properties such as ultimate tensile strength, modulus at break, resilience and abrasion resistance significantly and well above the minimum required standard mechanical parameters in the tyre industry. These reinforced composites show great potential to be used as heat dissipating rubber composites in the tyre industry.

Dataset Information

The effect of reinforcement particle size on the mechanical and fracture properties of glass matrix composites.

Publications

The effect of reinforcement particle size on the mechanical and fracture properties of glass matrix composites.

Similar Datasets

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