Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites
Autor(en): |
Yermal Shriraj Rao
Shivamurthy Basavannadevaru Nanjangud Mohan Subbarao Nagaraja Shetty |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Frattura ed Integrità Strutturale, 22 September 2022, n. 62, v. 16 |
Seite(n): | 240-260 |
DOI: | 10.3221/igf-esis.62.17 |
Abstrakt: |
Hexagonal boron nitride (hBN) and molybdenum disulfide (MoS2) fillers of 2 to 8 wt.% influence on toughness, microhardness and thermal stability of carbon fabric-reinforced epoxy composite (CFREC) reported. Mode-I, mixed-mode I/II toughness and microhardness of CFREC improved due to the addition of hBN and MoS2 separately upto 6 wt.% filler loading. The epoxy matrix in CFREC modified by hBN and MoS2 strengthens the matrix, deflects the crack path and resists delamination. Toughness reduced beyond 6 wt.% filler addition due to agglomeration and poor fiber-filler-matrix bonding as revealed by the surface morphology of the fracture specimen. Thermal analysis reveals decomposition temperature at 25% weight loss increased from 395 to 430 °C and 395 to 411 °C due to 4 wt.% MoS2 and 4 wt.% hBN addition to CFREC respectively. Impermeable characteristics of MoS2 and hBN fillers caused tortuous diffusion path for gas molecules and delayed thermal decomposition. |
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Datenseite - Reference-ID
10703002 - Veröffentlicht am:
11.12.2022 - Geändert am:
11.12.2022