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Thermal, ablation and mechanical properties of carbon–phenolic composites reinforced with zirconia coated graphene nanoplatelets
| Content Provider | Scilit |
|---|---|
| Author | Subha, S. Singh, Dalbir Venkatanarayanan, P. S. |
| Copyright Year | 2017 |
| Description | Journal: Materials Research Express The present experiments have been conducted to investigate the thermal, ablation and mechanical properties of Carbon/Phenolic (C-Ph) composites loaded with Zirconia (Zr) coated graphene nanoplatelets (Gnp) hybrid filler. The Zr/Gnp hybrid filler was synthesized by sol-gel technique and C-Ph composites were fabricated using hand layup method. The thermal stability was investigated by thermogravimetric analysis (TGA) and it was significantly improved with the addition of Zr and Zr/Gnp hybrid filler to pure C-Ph composite. The ablative properties were studied under oxyacetylene flame torch tests at a heat flux of 2100 kW m-3. The C-Ph/Zr/Gnp0.5 composite sample exhibited lower linear and mass ablation rates compared to pure C-Ph composite. The surface morphology of post-ablated composite samples was characterized by scanning electron microscopy (SEM). It was shown that the Zr/Gnp filler produced bubble-like structure around the C-fibers, which prevented the oxidation of fibers. Finally, the mechanical properties of C-Ph composites were investigated through three-point bending tests as per ASTM D7264 standard. The flexural strength and modulus of C-Ph composites loaded with hybrid filler increased about 30% and 54% compared to the pure C-Ph composite. |
| Related Links | http://iopscience.iop.org/article/10.1088/2053-1591/aaa3b8/pdf |
| ISSN | 20531591 |
| e-ISSN | 20531591 |
| DOI | 10.1088/2053-1591/aaa3b8 |
| Journal | Materials Research Express |
| Issue Number | 1 |
| Volume Number | 5 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2017-12-22 |
| Access Restriction | Open |
| Subject Keyword | Journal: Materials Research Express Composite Materials Mechanical Properties |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics |
