| Popis: |
In the fast-changing world, the quest for the energy-efficient and environment-friendly processing method is getting attention while without compromising on the product properties, processing time and cost. Consequently, the processing of material with microwave energy is emerging as a novel method and it is used as an alternate processing route for various types of advanced materials like MMC, PMC and alloys for commercial applications in the field of joining, biomedical, powder metallurgy, coatings, claddings, etc. The microwave processing dominates over the conventional processing of materials due to its notable advantages like low processing time, less energy consumption, volumetric heating, negligible thermal gradient and better mechanical properties. The current study primarily focuses on microwave processing and its interaction phenomena with polymer, reinforced with different synthetic and natural fibers. It was observed that only electric field component of microwave is responsible for heating of PMC, due to its non-magnetic nature; the losses responsible for microwave heating like dipole and conduction further depend upon the type of reinforcements. It was found that the dipole loss mechanism predominates in natural fibers, while conduction loss is responsible in processing conductive fibers. A few initial results have been presented; future possibilities are indicated. |
