Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites
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...
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| Language: | English |
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Gruppo Italiano Frattura
2022-09-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://3.64.71.86/index.php/fis/article/view/3765 |
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| author | Yermal Shriraj Rao Shivamurthy Basavannadevaru Nanjangud Mohan Subbarao Nagaraja Shetty |
| author_facet | Yermal Shriraj Rao Shivamurthy Basavannadevaru Nanjangud Mohan Subbarao Nagaraja Shetty |
| author_sort | Yermal Shriraj Rao |
| collection | DOAJ |
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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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| format | Article |
| id | doaj-art-0952a25542f44c2c8255506dfb4c4989 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-0952a25542f44c2c8255506dfb4c49892025-02-03T10:34:52ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-09-011662Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy compositesYermal Shriraj Rao0Shivamurthy Basavannadevaru1Nanjangud Mohan Subbarao2Nagaraja Shetty3Department of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, IndiaDepartment of Mechanical and Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India 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. https://3.64.71.86/index.php/fis/article/view/3765Molybdenum disulfideBoron nitrideFracture toughnessThermal stabilityMicrohardnessFracture surface morphology |
| spellingShingle | Yermal Shriraj Rao Shivamurthy Basavannadevaru Nanjangud Mohan Subbarao Nagaraja Shetty Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites Fracture and Structural Integrity Molybdenum disulfide Boron nitride Fracture toughness Thermal stability Microhardness Fracture surface morphology |
| title | Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites |
| title_full | Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites |
| title_fullStr | Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites |
| title_full_unstemmed | Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites |
| title_short | Influence of hBN and MoS2 fillers on toughness and thermal stability of carbon fabric-epoxy composites |
| title_sort | influence of hbn and mos2 fillers on toughness and thermal stability of carbon fabric epoxy composites |
| topic | Molybdenum disulfide Boron nitride Fracture toughness Thermal stability Microhardness Fracture surface morphology |
| url | https://3.64.71.86/index.php/fis/article/view/3765 |
| work_keys_str_mv | AT yermalshrirajrao influenceofhbnandmos2fillersontoughnessandthermalstabilityofcarbonfabricepoxycomposites AT shivamurthybasavannadevaru influenceofhbnandmos2fillersontoughnessandthermalstabilityofcarbonfabricepoxycomposites AT nanjangudmohansubbarao influenceofhbnandmos2fillersontoughnessandthermalstabilityofcarbonfabricepoxycomposites AT nagarajashetty influenceofhbnandmos2fillersontoughnessandthermalstabilityofcarbonfabricepoxycomposites |