Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites
Hollow spherical fly ash cenosphere is a by-product of the coal firing process in thermal power plants and nowadays has become a substitute for the other organic fillers in the composite industry. The present study investigates the mechanical and acoustic performance of cenosphere/epoxy-based polyme...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Journal of King Saud University: Engineering Sciences |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018363921001586 |
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| author | Sriharsha Hegde N.H. Padmaraj V. Siddesh T.S. Sunaya K. Adithya Kini Vishal K. Sanil |
| author_facet | Sriharsha Hegde N.H. Padmaraj V. Siddesh T.S. Sunaya K. Adithya Kini Vishal K. Sanil |
| author_sort | Sriharsha Hegde |
| collection | DOAJ |
| description | Hollow spherical fly ash cenosphere is a by-product of the coal firing process in thermal power plants and nowadays has become a substitute for the other organic fillers in the composite industry. The present study investigates the mechanical and acoustic performance of cenosphere/epoxy-based polymer composites. Void content, Shore Hardness, Tensile, Flexural, Impact, and Acoustic studies were conducted on epoxy specimens containing 0, 3, 5, and 7% of cenosphere by weight. Surface morphology and failure pattern of the tensile failure samples were investigated using the scanning electron microscope technique. Incorporation of cenosphere into epoxy reduced the void content from 4.27 to 2.54 % and increased the Shore hardness from 80.8 ± 1.44 to 85.8 ± 1.78 when the filler content was increased from 3 to 5%. Impact strength, Tensile and Flexural modulus showed an incremental trend with the increase in the weight percentage of the cenosphere. Examination of the tensile failure surface showed the presence of twist hackles and better interlocking of cenosphere with epoxy matrix. The density of the specimens played vital role in sound absorption characteristics. The addition of the cenosphere in epoxy deteriorates the sound absorption behaviour of the material as compared to neat epoxy. |
| format | Article |
| id | doaj-art-9cc7a6cc9d0c4f8a83939fa9bb6b49fa |
| institution | Kabale University |
| issn | 1018-3639 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Engineering Sciences |
| spelling | doaj-art-9cc7a6cc9d0c4f8a83939fa9bb6b49fa2024-12-22T05:27:29ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392024-12-01368646651Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer compositesSriharsha Hegde0N.H. Padmaraj1V. Siddesh2T.S. Sunaya3K. Adithya Kini4Vishal K. Sanil5Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaCorresponding author.; Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, IndiaHollow spherical fly ash cenosphere is a by-product of the coal firing process in thermal power plants and nowadays has become a substitute for the other organic fillers in the composite industry. The present study investigates the mechanical and acoustic performance of cenosphere/epoxy-based polymer composites. Void content, Shore Hardness, Tensile, Flexural, Impact, and Acoustic studies were conducted on epoxy specimens containing 0, 3, 5, and 7% of cenosphere by weight. Surface morphology and failure pattern of the tensile failure samples were investigated using the scanning electron microscope technique. Incorporation of cenosphere into epoxy reduced the void content from 4.27 to 2.54 % and increased the Shore hardness from 80.8 ± 1.44 to 85.8 ± 1.78 when the filler content was increased from 3 to 5%. Impact strength, Tensile and Flexural modulus showed an incremental trend with the increase in the weight percentage of the cenosphere. Examination of the tensile failure surface showed the presence of twist hackles and better interlocking of cenosphere with epoxy matrix. The density of the specimens played vital role in sound absorption characteristics. The addition of the cenosphere in epoxy deteriorates the sound absorption behaviour of the material as compared to neat epoxy.http://www.sciencedirect.com/science/article/pii/S1018363921001586Sound AbsorptionVoid ContentEpoxyTensile ModulusFrequency |
| spellingShingle | Sriharsha Hegde N.H. Padmaraj V. Siddesh T.S. Sunaya K. Adithya Kini Vishal K. Sanil Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites Journal of King Saud University: Engineering Sciences Sound Absorption Void Content Epoxy Tensile Modulus Frequency |
| title | Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites |
| title_full | Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites |
| title_fullStr | Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites |
| title_full_unstemmed | Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites |
| title_short | Experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere/epoxy polymer composites |
| title_sort | experimental investigation of mechanical sustainability and acoustic performance of fly ash cenosphere epoxy polymer composites |
| topic | Sound Absorption Void Content Epoxy Tensile Modulus Frequency |
| url | http://www.sciencedirect.com/science/article/pii/S1018363921001586 |
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