A5057081032- Microwave-Assisted Synthesis and Applications
- Epoxy Resin Curing Processes
- Advanced ceramic materials synthesis
- Electromagnetic wave absorption materials
- Fiber-reinforced polymer composites
- Flame retardant materials and properties
- Smart Materials for Construction
- Mechanical Behavior of Composites
- Synthesis and properties of polymers
Advanced Manufacturing Research Centre
2019-2023
University of Sheffield
2017-2023
Curing aerospace composites is time-consuming with high energy requirements, particularly when using methods such as autoclaves, ovens and heated presses. This study investigates direct electric cure (DEC), which uses the Joule effect to directly heat carbon fibre their temperature. Its benefits include a significant increase in efficiency, control over temperature low void content compared oven curing. Samples were manufactured vacuum-assisted resin transfer moulding (VARTM) prepreg, well...
The ability of microwave radiation to penetrate and interact directly with materials has led its extensive use in food drug industries, more recently composites manufacturing. Microwave heating allows rapid heat transfer throughout the material thickness reduced thermal gradients processing times as well energy efficiency. Design systems process composite parts various geometries sizes demands improved understanding electromagnetic distribution factors influencing it. Finite-element (FE)...
This paper outlines the conversion of a domestic microwave oven for use in composite curing applications. It compares several strategies temperature control. The converted has vacuum ports, connectors, and fiber optic thermocouple sensors. Experimental data are provided each control strategy based on 200 mm × eight-ply prepreg laminate. degree cure is established test samples by thermal analysis techniques. Multiphysics simulation used to model electromagnetic heating effects system, common...
When cured in a microwave, flat thin composite panels can experience even heat distribution throughout the laminate. However, as load and geometric complexity increase, electromagnetic field resulting is altered, making it difficult to cure homogeneously. Materials that absorb and/or reflect incident radiation have potential influence how behaves, therefore tailor improve uniformity of distribution. In this study, an absorber was applied with non-uniform geometry increase heating location...